planchet flaw: same as a planchet defect.
planchet striations: defects in a blank planchet, caused by impurities in the metal, that are not obliterated when the coin is struck.
planchet flaw An irregular hole in a coin blank, sometimes the result of a lamination that has broken away.
3. Planchet Flaw - Raised metal, missing metal, peeling metal and annealed planchets are just a few of the mint made flaws which, if large enough, will disqualify a coin from encapsulation.
A form of planchet flaw caused by imperfections in the metal, whereby a thin strip of the metal separates itself from the coin.
Lint Mark - ...
Errors Due to Planchet Flaws or Impurities
Peel or Lamination Flaw Coin Error
Australian Split Planchet Errors
Split Planchet Errors Part 2
Split Planchet Errors Part 3
Strike Through Error ...
If this breaks off, an irregular hole or planchet flaw is left. large cent A large copper U.S. coin, one-hundredth of a dollar, issued from 1793 until 1857, when it was replaced by a much smaller cent made from a copper-nickel alloy.
Also noted is a small planchet flaw below the E (TWENTY). This issue is reasonably available in lower Mint State quality from some lower level Mint State coins found in Europe a few decades ago (see note).
The strike on most 1856-D half eagles is average, with surfaces that are marked from circulation and have mint-made planchet flaws (laminations, etc.).
Lamination - A form of planchet flaw caused by imperfections in the metal, whereby a thin strip of the metal separates itself from the coin.
coin terminology
adjustment marks
planchet flaws
variety coins
Adjustment marks can be seen in this detail of a 1797 Half Dollar.
Possible planchet flaw of some type may be present or minor rim ding. Hairlines may be numerous due to wiping at one time. Harsh abrasive cleaning will result in a no-grade even though the coin may not have been in circulation.
On the reverse is a planchet flaw consisting of numerous pit marks at OUT of WITHOUT. Weight ranges are from 143.8 grains to 119.
One example sold in 1973 by dealer Art Kagin for $46,000. The coin was graded extra fine because of a scratch on the reverse and a planchet flaw. In 1988, Superior Auctions sold this coin for $64,000 and it was graded Proof 60.
A thin piece of metal that has nearly become detached from the surface of a coin. If this breaks off, an irregular hole or planchet flaw is left.
large cent ...
lamination
A thin piece of metal that has nearly become detached from the surface of a coin. If this breaks off, an irregular hole or planchet flaw is left.
4-I (R-4+), COMPANY FOR COINING COPPERS, NEW HAVEN, Short ribbon, colon in legends, ETLIR variety. INDE:, Breen 837, struck from warn dies, Very Good-Fine, some detail in bust and rev., planchet flaw on obv.
Half cents of 1796 are once again dark brown or even black, and many exhibit porosity and planchet flaws.
 See also: Planchet, Mint, Coin, Struck, Collector
  
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