Old Craftsman Extension ID?

[handmadeMI]

I got this old crsftsman 1/2in extension. Any idea what age and manufacturer this might be? I can make out CRAFTSMAN and C-91.

 

[JoCoSawdust]

Early 30s C-series.

Early Craftsman Tools and Their Makers [Page 3]

Page 3 of an article on early Craftsman tools and the companies that made them.

alloy-artifacts.org

 

[handmadeMI]

Early 30s C-series.

Early Craftsman Tools and Their Makers [Page 3]

Page 3 of an article on early Craftsman tools and the companies that made them.

alloy-artifacts.org

That looks to be it. Thank you sir!