A Bassett Co. knife with file and bottle opener.Each blade has a tang stamp. The knife has the following numbers: 2779098. The file-Pat.D. and the bottle opener- Bassett Made In U.S.A. Patented. Both sides of the handle the words Trim-Trio can be found. Year made?? Bassett (Jewelry Co.) Providence RI, estab. c 1922.