I came across a RUGER yankee screwdriver. I'm looking for any detailed information and value that I can get as I am going to sell it. It's marked "THE RUGER CORP. SOUTHPORT, CONN. U.S.A. PATENTS PENDING". It also has a bit that is marked "CHROME VAN". I believe it's a manual because it doesn't spring out. Without being extended and no bit it measures 11". It is in very good condition and functions well. From what I have found out so far there were different sizes which could possibly make it more scarce. Any information would be greatly appreciated. I can't figure out how to upload pictures on this site yet but I will work on it. In the mean time if you are interested just post your email and I will send them to you. Thanks