really old Carter Carb tool kit

Just wondering if anyone here digs this kind of stuff. I picked this up at a swap meet for $10! It's a small metal box with a Carter logo on the lid, and inside is about 50 tiny carb adjustment tools. It's really cool. All the little tools have the Carter logo engraved in them too. I think it's 1930's or 1940's era, but not sure. If anyone knows what this is or knows about how old it is, I would appreciate the help. I'll try to post some pics. Cool old stuff!

 

I work with them daily.

Jon.

 

I'd love to buy those carb adjusting tools. What will you take for them? I'd be willing to double or triple your original investment, but I won't be buying them for show, I rebuild vintage carburetors every day. I would put those tools to good use.