Satisfying Antique Brass and Copper Watchmaker's 3 Inch Double Calipers yarn winder in bottle 20" span when open

20" span when open

As per my postal scale

9 1/8 t x 2 1/2 w x 7/8 d

Pretty much a lost form at this point

Satisfying Antique Brass and Copper Watchmaker's 3 Inch Double Calipers yarn winder in bottle 20" span when openSometimes an old tool just strikes as especially lovely, as was the case with this antique brass watchmaker's double caliper. What do I know about watchmaking? Nothing. But I find the delicacy of this, with its thin, tapering arms, and its symmetry, and the way the sides open and close together very satisfying. Feels like a metaphor for embodiment of balance and precision! This would have be used for measuring, truing, and modifying tiny watch