Counter pen

A counter pen is a pen designed to be affixed to the counter or table of an institution, such as, typically, a bank or post office by some means, typically a chain, ball chain or plastic cord, complicating the accidental or purposeful removal of the pen from the counter.

A 1938 issue of The Bankers Monthly describes the concept: The pen also gives a better write than the ordinary counter pen. The ink stand cannot be stolen, for it is fastened to the counter or desk. Besides, a chain between pen and stand prevents anyone from wandering away with the pen.