I have some figures with the mark as described in the subject, and have seen the seen the same marks before on other figurines that I have not purchased, but can find no absolute definitive indication of country of origin or manufacturer. Can anyone provide any guide please. One source believed it was a mark for Marks & Rosenfeld, saying they were a pottery Company in San Francisco California between 1940-1950 but another source states they were not a manufacturer at all, just a distributor of ceramics, glassware and giftware between 1950-1960s. Can’t make the picture small enough to post here!