Antique Rare American Waterbury Clock Co. Name Stamped Clock Key C.1870

Rare Waterbury clock key from the 1870's. Fits most American clocks from this time period. The WATERBURY CLOCK CO. inscription is on the side of this brass key with all original patina.

The key measures 2 1/4" tall by 2" wide (5.7 x 5.1 cm). A very unique and functional key from a century and half past!