Victor World Group
I didn't know these Prestige Reissues in Japan!
The series called, MJ series by Victor Music Japan.
With this sample of Mal Waldron Mal 4 has OBI too and it is written,
They used this kind of name in the 60's when they were producing Top Rank label reissues. So, I assume and suspect these MJ series were manufactured either in the late 60's or in the early 70's. Most likely in the early 70s'.
Anyway, Japan has MANY, MANY versions of Jazz reissues, that sometimes, even collectors don't know or miss!