Hello, Does anyone recognize these?  Duro Chrome 1/4" Drive, numbers 4543, and 4545. Thanks, Lou

Lou,they may have been used to work on carburetors. I bought a couple that looked like that back in the early 60's. I realize my identification record isn't too good right now, maybe this will redeem me...or not.

http://www.thecarburetorshop.com/Carter_tools.htm

Mike

Are you sure about the numbers? I found these in the 1935 Duro Metal Products catalog.
-Don

Hello, Don. I checked again, and the numbers are  4543 & 4545.. Thanks, Lou

Those were the closest ones I saw. There aren't that many Duro catalogs out there. After checking more thoroughly I finally found a 1940 catalog to check. It looks like they changed the part numbers of the refrigeration sockets between 1935 and 1940.
-Don

Hello, Don. Thanks for taking the time to look that up, and for sharing the info!!! Regards, Lou