Grainer

Webster's Dictionary of the English Language

·noun A knife for taking the hair off skins.

II. Grainer ·noun One who paints in imitation of the grain of wood, marble, ·etc.; also, the brush or tool used in graining.

III. Grainer ·noun An infusion of pigeon's dung used by tanners to neutralize the effects of lime and give flexibility to skins;

— called also grains and bate.