Planchet defect

planchet defects: flaws on a coin that are believed to have been in the metal before the coin was struck. These are not treated as harshly as circulation marks or defects, if at all.
planchet flaw: same as a planchet defect.

planchet defects Any of the various abnormalities found on coin blanks. These include drift marks, laminations, clips, and so forth.
planchet flaw An irregular hole in a coin blank, sometimes the result of a lamination that has broken away.

Planchet Defect - A defect on the planchet that was not eliminated during the striking process. A piece of metal of dirt in the die can cause this, as well as a problem with the original planchet that was fed into the die.

Planchet Defect
A defect on the planchet. It could be from a piece of metal or dirt in the die or a problem with the original planchet that was fed into the die.

planchet defects
Various abnormalities found on coin blanks including drift marks, laminations, clips, etc.
planchet flaw ...

Planchet Defect -
Any defect of a coin which was caused by the planchet being imperfect prior to the coin being struck. (Synonym: "Planchet Flaw").
PQ - ...

PLANCHET DEFECT
The general term for any of the several types of imperfection on a planchet.
PLANCHET STRIATIONS ...

Light planchet defects, as struck, are noted on the obverse above Liberty's head, across her eye, and behind her in the field.
From Stack's 1976 ANA Sale, August 1976, Lot 3182.
Lovely 1856-S Double Eagle ...

However, a mint caused planchet defect is usually not as detracting as a bagmark.

Comments: On the obverse it appears there may be a period before FLOREAT but it could just be a wear spot or a planchet defect. The bottom of the figurehead on the hard bows out at the O and the head is aligned with the E in FLOREAT.

The surfaces on this date are usually heavily marked from circulation and have mint-made planchet defects. Original, uncleaned high grade specimens have pleasing frosty luster and coloration ranging from a rich yellow-gold to a green-gold hue.

1867 No Rays, Good, small dent or planchet defect on Obv., normally a $18.00 coin.................................... 5.00 ...

"Low-129. Roxbury Coaches. Boston. 1837. German silver. VF-35. Planchet defect near rim, as illustrated.

This test is not infallible; some struck coins do not ring because of planchet defects such as cracks or gas occlusions; also, some cast copies have been filled with glass (or other substances) and do ring.

See also: Planchet, Mint, Grade, Coin, Half