The Collaborative International Dictionary of English v.0.48:

Remarque \Re*marque"\, n. Also Remark \Remark\ (Engraving)
   (a) A small design etched on the margin of a plate and
       supposed to be removed after the earliest proofs have
       been taken; also, any feature distinguishing a particular
       stage of the plate.
   (b) A print or proof so distinguished; -- commonly called a
       Remarque proof.
       [Webster 1913 Suppl.]