This is probably vintage 1980s, given the history of prior owner. Twelve boring bars packaged in a roll up plastic sleeve, 9"W 3" deep when closed. No mfr name anywhere. No country of manufacture listed. Label says "Carbide tipped brazed boring bar set 5/8" - C6 *12 pcs). Round shanks. The boring bits are probably unused, but the plastic case has seen better days. Please contact me if you need further information.