Thanks Kirk.  That is a big step in the right direction.  To start, a 
legitimate identification as pattern maker's tools. Secondly, a possible 
contract manufacturer.  As stated in the frontispiece of the pamphlet, 
paraphrasing a bit here;

/We stick to standard brands except in the case of special tools which 
are not made by large manufacturers and which in many cases we have been 
compelled to have made especially for us./

Two of the three sets I have look quite new. I'm really guessing 50's 
-70's so they have probably been in continuous manufacture for quite awhile.

Bill W.
Nottingham, PA
Woodworkers visit me at http://billwebber.galootcentral.com/