This vintage cutaway coat was made in 1907 by Henry Jonas of Butte, Montana for M.A. Berger, a noted land agent in the Butte area in the late 1800s and early decades of the 1900s. Butte was well known in that period for its copper mining. The coat bears the label of the Journeyman Tailors of America union.
Chest (pit to pit): 20″
Shoulder to shoulder: 17-3/4″
Sleeve (shoulder to cuff): 24″
Length (base of collar to hem): 36″
This frock coat seems to be dated October, 1876. It was made in Kalamazoo, Michigan for G.J. Bosch. The black fabric has faded green over the years. There are tons of period repairs, and clumsily replaced buttons. My guess would be that it was used as a theatrical or costume piece at some point.