All,
I picked this tool up at an estate sale without knowing what it is used
for. I'm thinking someone here must have seen it before and knows how to
use it.
It is held together by a piece of tubing, which could have been owner
provided. One side is marked "Stanley, Made in USA" and the other is marked
"No. 4 (2?) Made in USA". The length is about 9.5".

I created a link to pictures, hopefully the link comes through the mailing
list servers.

https://www.dropbox.com/sh/7t9b79o5bnqr6dy/AACONgU3HPEbVGVd2DTtu9VMa?dl=0

-- 
Paul