Siegley No. 5

Jacob Siegley started in New York City, and moved to Wilkes-Barre, Pennsylvania in 1883-4 where he manufactured planes.  Stanley bought Siegley's plane business involving his line of combination and block planes in 1905. At that time,Stanley sold some of the excess stock to Union. Union sold Seigley labeled tools for a time but not the bench planes that Seigley was making at the time he sold to Stanley. Seigley had a screw type blade cap (as opposed to a lever cap) and a unique blade adjustment. These designs were later sold to Edwin Hahn in 1908.

Gleaned from a multitude of posts from the old tools list..thanks to Chuck Zitur among others

interesting concept..minimal frog with a Stanley look alike depth adjuster...but the lateral is a whole other thing

one pivot point on the frog and the adjustment is made by the offset pin in the blade slot