pin mark

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noun

the circular indentation on the upper part of a type body, made by the pin that ejects the type from the caster.

Origin of pin mark

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pin mark

  • Pin-mark—The little mark sometimes seen on the side of foundry-made type.

    Type|A. A. Stewart