Press Button Knife Co Small Sterling Gothic double automatic knife with File blade

Antique PRESS BUTTON KNIFE CO small double Sterling Gothic switchblade knife made by the PRESS BUTTON KNIFE CO of Walden, NY sometime between 1892 and 1923. It measures 2 7/8" closed and 5 5/8" open with nickel silver liners and buttons. The blades are both mostly full with pitting and both are stamped PRESS BUTTON KNIFE CO WALDEN NY though hard to read because of the pitting and the backside is stamped US PAT 470605, also hard to read. The Sterling Silver scales are very nice and have elaborate raised design with what looks like a tribal mask on the front. The knife works well. Both blades seat well, open fully and good lockup, though the large blade doesn't always lock due to it being a little loose, but good when it does. VG condition.