283 +.060" pistons identification

Bought these pistons. There are no markings on them, although by my measurements, they are .060 over 283 cast pistons. No stampings on the top indicating the overbore. The only markings on them at all are on the inside of the skirt, there is a V inside an oval and a 445. Definitely cast, with dome. Does anyone recognize them and maybe tell me the manufacturer?


Thanks,
Dan