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Division I: Planchet Varieties
blank planchetsBy Alan Herbert
March 22, 2010
blank planchets



The first division of the PDS System includes those minting varieties that occur in the manufacture of the planchet upon which the coins will ultimately be struck and includes classes resulting from faulty metallurgy, mechanical damage, faulty processing, or equipment or human malfunction prior to the actual coin striking.



Planchet Alloy Mix (I-A)

This section includes those classes pertaining to mixing and processing the various metals which will be used to make a coin alloy.

I-A-1 Improper Alloy Mix (WE), Rarity Level: 3-4.....Values: $5 to $10
I-A-2 Slag Inclusion Planchet (WE), Rarity Level: 5-6.....Values: $25 up



Damaged and Defective Planchets (I-B)

To be a class in this section the blank, or planchet, must for some reason not meet the normal standards or must have been damaged in processing. The classes cover the areas of defects in the melting, rolling, punching and processing of the planchets up to the point where they are sent to the coin presses to be struck.

I-B-1 Defective Planchet (WE), Rarity Level: 6 ..... Values: $25 up
I-B-2 Mechanically Damaged Planchet (WE), Rarity Level: - .....Values: No Value (See values for the coin struck on a mechanically damaged planchet.)
I-B-3 Rolled Thin Planchet (WE), Rarity Level: 6 - (Less rare on half cents of 1795, 1797 and restrikes of 1831-52.)..... Values: $10 up
I-B-4 Rolled Thick Planchet (WE), Rarity Level: 7 - (Less rare in Colonial copper coins. Notable examples occur on the restrike half cents of 1840-52.) ..... Values: $125 up
I-B-5 Tapered Planchet (WE), Rarity Level: 7 ..... Values: $25 up
I-B-6 Partially Unplated Planchet (WE), Rarity Level: 6.... Values: $15 up
I-B-7 Unplated Planchet (WE), Rarity Level: 6-7 ......Values: $50 up
I-B-8 Bubbled Plating Planchet (WE), Rarity Level: 1 ......Values: No Value
I-B-9 Included Gas Bubble Planchet (WE), Rarity Level: 6-7. .....Values: $50 up
I-B-10 Partially Unclad Planchet (WE), Rarity Level: 6 .......Values: $20 up
I-B-11 Unclad Planchet (WE), Rarity Level: 6-7 ..... .Values: $50 up
I-B-12 Undersize Planchet (WE), Rarity Level: 7 . ......Values: $250 up
I-B-13 Oversize Planchet (WE), Rarity Level: 7 .......Values: $250 up
I-B-14 Improperly Prepared Proof Planchet (WE), Rarity Level: 7 ......Values: $100 up
I-B-15 Improperly Annealed Planchet (WE), Rarity Level: - . ..... Values: No Value
I-B-16 Faulty Upset Edge Planchet (WE), Rarity Level: 5-6. ......Values: $10 up
I-B-17 Rolled-In Metal Planchet (WE), Rarity Level: 6-7. .....Values: $50 up
I-B-18 Weld Area Planchet (WE), Rarity Level: Unknown . ....Values: No Value Established
(See values for the coins struck on weld area planchets.)
I-B-19 Strike Clip Planchet (WE), Rarity Level: 7 ...... .Values: $150 up
I-B-20 Unpunched Center-Hole Planchet (WE), Rarity Level: 5-7 ...... Values: $5 and up
I-B-21 Incompletely Punched Center-Hole Planchet (WE), Rarity Level: 6-7.......Values: $15 up
I-B-22 Uncentered Center-Hole Planchet (WE), Rarity Level: 6-7...... Values: $10 up
I-B-23 Multiple Punched Center-Hole Planchet (WE), Rarity Level: 7 ...... .Values: $35 up
I-B-24 Unintended Center-Hole Planchet (WE), Rarity Level: Unknown .Values: -
I-B-25 Wrong Size or Shape Center-Hole Planchet (IWE), Rarity Level: 5-7 ......Values: $10 up



Clipped Planchets (I-C)

Clipped blanks, or planchets, occur when the strip of coin metal fails to move forward between successive strokes of the gang punch to clear the previously punched holes, in the same manner as a cookie cutter overlapping a previously cut hole in the dough. The size of the clip is a function of the amount of overlap of the next punch.

The overlapping round punches produce a missing arc with curve matching the outside circumference of the blanking punch. Straight clips occur when the punch overlaps the beginning or end of a strip which has had the end sheared or sawed off.

Ragged clips occur in the same manner when the ends of the strip have been left as they were rolled out.

The term “clip” as used here should not be confused with the practice of clipping or shaving small pieces of metal from a bullion coin after it is in circulation.

I-C-1 Disc Clip Planchet (WE), Rarity Level: 3-5 . . .....Values: $5 up
I-C-2 Curved Clip Planchet - (To 5%) (WE), Rarity Level: 5-6 . ......Values: $5 up
I-C-3 Curved Clip Planchet - (6 to 10%) (WE), Rarity Level: 6 . .....Values: $10 up
I-C-4 Curved Clip Planchet - (11 to 25%) (WE), Rarity Level: 5-6. .....Values: $15 up
I-C-5 Curved Clip Planchet - (26 to 60%) (WE), Rarity Level: 6-7.....Values: $25 up
I-C-6 Double Curved Clip Planchet (WE), Rarity Level: 6 ......Values: $10 up
I-C-7 Triple Curved Clip Planchet (WE), Rarity Level: 5-6 .....Values: $25 up
I-C-8 Multiple Curved Clip Planchet (WE), Rarity Level: 6-7 ......Values: $35 up
I-C-9 Overlapping Curved Clipped Planchet (WE), Rarity Level: 6-7 . .....Values: $50 up
I-C-10 Incompletely Punched Curved Clip Planchet (WE), Rarity Level: 6 .....Values: $35 up
I-C-11 Oval Curved Clip Planchet (WE), Rarity Level: 6-7 . .....Values: $50 up
I-C-12 Crescent Clip Planchet - (61% or more) (WE), Rarity Level: 7 ......Values: $200 up
I-C-13 Straight Clip Planchet (WE), Rarity Level: 6. .....Values: $30 up
I-C-14 Incompletely Sheared Straight Clip Planchet (WE), Rarity Level: 6 .....Values: $50 up
I-C-15 Ragged Clip Planchet (WE), Rarity Level: 6-7 . .....Values: $35 up
I-C-16 Outside Corner Clip Planchet (E), Rarity Level: -. . .....Values: No Value
I-C-17 Inside Corner Clip Planchet (E), Rarity Level: - . ......Values: No Value
I-C-18 Irregularly Clipped Planchet (E) Rarity Level: - . .....Values: Value not established
I-C-19 Incompletely Punched Scalloped or Multi-Sided Planchet (E), Rarity Level: 7 ......Values: $25 up



Laminated, Split, or Broken Planchet (I-D)

For a variety of reasons the coin metal may split into thin layers (delaminate) and either split completely off the coin, or be retained. Common causes are included gas or alloy mix problems. Lamination cracks usually enter the surface of the planchet at a very shallow angle or are at right angles to the edge. The resulting layers differ from slag in that they appear as normal metal.

Lamination cracks and missing metal of any size below a split planchet are too common in the 35 percent silver 1942-1945 nickels to be collectible or have any signifi cant value.

I-D-1 Small Lamination Crack Planchet (W), Rarity Level: 4-5 ......Values: $1 up
I-D-2 Large Lamination Crack Planchet (W), Rarity Level: 3-4 ......Values: $5 up
I-D-3 Split Planchet (W), Rarity Level: 5-6 . .....Values: $15 up
I-D-4 Hinged Split Planchet (W), Rarity Level: 6-7 . .....Values: $75 up
I-D-5 Clad Planchet With a Clad Layer Missing (W), Rarity Level: 5-6 ......Values: $35 up
I-D-6 Clad Planchet With Both Clad Layers Missing (W), Rarity Level: 6-7 ......Values: $75 up
I-D-7 Separated Clad Layer (W), Rarity Level: 5 .....Values: $25 up
I-D-8 Broken Planchet (WE), Rarity Level: 3-4 ......Values: $5 up



Wrong Stock Planchet (I-E)

The following classes cover those cases where the wrong coin metal stock was run through the blanking press, making blanks of the correct diameter, but of the wrong thickness, alloy or metal or a combination of the wrong thickness and the wrong metal.

I-E-1 Half Cent Stock Planchet (IE), Rarity Level: Unknown . ......Values: No Value Established
I-E-2 Cent Stock Planchet (IE), Rarity Level: Unknown ...... Values: No Value Established
I-E-3 Two Cent Stock Planchet (E), Rarity Level: Unknown ..... Values: No Value Established
I-E-4 Three Cent Silver Stock Planchet (E), Rarity Level: Unknown..... Values: No Value Established
I-E-5 Three Cent Nickel Stock Planchet (E), Rarity Level: Unknown ..... Values: No Value Established
I-E-6 Half Dime Stock Planchet (E), Rarity Level: Unknown ...... Values: No Value Established
I-E-7 Dime Stock Planchet (E), Rarity Level: 7 . ..... Values: $200 up
I-E-8 Twenty Cent Stock Planchet (E), Rarity Level: Unknown. .....Values: No Value Established
I-E-9 Quarter Stock Planchet (E), Rarity Level: Unknown . .....Values: No Value Established
I-E-10 Half Dollar Stock Planchet (E), Rarity Level: Unknown.....Values: No Value Established
I-E-11 Dollar Stock Planchet (E), Rarity Level: 7.......Values: $300 up
I-E-12 Token or Medal Stock Planchet (E), Rarity Level: Unknown ......No Value Established
I-E-13 Wrong Thickness Spoiled Planchet (IWE), Rarity Level: Unknown. .....Value Established
I-E-14 Correct Thickness Spoiled Planchet (IWE), Rarity Level: Unknown . .....Value Established
I-E-15 Cut Down Struck Token Planchet (IWE), Rarity Level: Unknown . .....Value Established
I-E-16 Experimental or Pattern Stock Planchet (IE), Rarity Level: Unknown .....Value Established
I-E-17 Proof Stock Planchet (IE), Rarity Level: Unknown ......Values: No Value Established
I-E-18 Adjusted Specifi cation Stock Planchet (IE), Rarity Level: 7. ......Values: $25 up
I-E-19 Trial Strike Stock Planchet (IE), Rarity Level: Unknown . .....Values: No Value Established
I-E-20 U.S. Punched Foreign Stock Planchet (E), Rarity Level: 7 . .....Values: $75 up
I-E-21 Foreign Punched Foreign Stock Planchet (E), Rarity Level: 7. .....Values: $75 up
I-E-22 Non-Standard Coin Alloy Planchet (IE), Rarity Level: 7 ......Values: Unknown



Extra Metal on a Blank, or Planchet (I-F)

True extra metal is only added to the blank during the blanking operation. This occurs as metal is scraped off the sides of the blanks as they are driven down through the thimble, or lower die in the blanking press. The metal is eventually picked up by a blank passing through, welded to it by the heat of friction.

A second form of extra metal has been moved to this section, the sintered coating planchet, the metal deposited on the planchet in the form of dust during the annealing operation.

I-F-1 Extra Metal on a Type 1 Blank (W), Rarity Level: 7 ......Values: $50 up
I-F-2 Extra Metal on a Type 2 Planchet (W), Rarity Level: 6-7. .....Values: $75 up
I-F-3 Sintered Coating Planchet (W), Rarity Level: 7......Values: $75 up



Normal or Abnormal Planchets (I-G )

This section consists of the two principal forms – the blank as it comes from the blanking press – and in the form of a planchet after it has passed through the upsetting mill. It also includes a class for purchased planchets and one for planchets produced by the mint.

I-G-1 Type I Blank (IWE), Rarity Level: 3-5 ......Values: $2 up
I-G-2 Type II Planchet (IWE), Rarity Level: 3-4 ......Values: 50 up
I-G-3 Purchased Planchet (I), Rarity Level: 1 . .....Values: No Value
I-G-4 Mint Made Planchet (I), Rarity Level: 1 . ......Values: No Value
I-G-5 Adjustment-Marked Planchet (I), Rarity Level: Unknown ......Values: No Value
I-G-6 Hardness Test-Marked Planchet (I), Rarity Level: - . .....Values: No Value Established

Note: There are no classes between I-G-6 and I-G-23

I-G-23 Proof Planchet (IE), Rarity Level: 6-7......Values: $1 up



Coin Metal Strip (I-H)

When the coin metal strip passes through the blanking press it goes directly to a chopper.
This cuts the remaining web into small pieces to be sent back to the melting furnace.
Pieces of the web or the chopped up web may escape into the hands of collectors.

I-H-1 Punched Coin Metal Strip (IWE), Rarity Level: 4-6 . .....Values: $5 up, depending on size, denomination and number of holes showing
I-H-2 Chopped Coin Metal Strip (IE), Rarity Level: 3-5. ......Values: $5 up



More Resources:

• Subscribe to our Coin Price Guide, buy Coin BooksCoin Folders and join the NumisMaster VIP Program

2010 U.S. Coin Digest, The Complete Guide to Current Market Values, 8th ed.

State Quarters Deluxe Folder By Warmans

Standard Guide to Small-Size U.S. Paper Money, 1928 to Date

Strike It Rich with Pocket Change, 2nd Edition

 

 



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