THESE ARE STARRETT TOOLS & BROWN & SHARPE TOOLS MECHANICAL MEASURING CAILPERS. THE ITEM NUMBER IS STARRETT TOOLS (THE BIGEST ONE IT SAYS PAT. APRIL 16 1901) & BROWN & SHARPE TOOLS (THE SMALLER 2 SAY 83, 832). THEY ARE IN PRETTY GOOD WORKING CONDITION. THERE ARE NO OWNERS MARKS. 90F4C10. PLEASE SEE OUR PHOTOS FOR MORE DETAILS. ALSO PLEASE SEE OUR MANY OTHER QUALITY TOOLS IN OUR EBAY STORE WHEELS TOOLS. !!!! FREE FAST SHIPPING IN USA !!!! SHIPPING METHOD:YOU WILL ALWAYS GET IT SHIPPED SUPER FAST WITH USPS POST OFFICE 2 TO 3 DAY PRIORITY MAIL SHIPPING IF WITHIN THE USA. QUESTIONS:I TRY TO DESCRIBE ITEMS THE BEST I CAN. IF YOU HAVE ANY QUESTIONS BEFORE END OF THE SALE PLEASE ASK.