JCM 27: 1957 Yamakatsu Color Borderless Grey Ink Backs

JCM 27: 1957 Yamakatsu Color Borderless is one of the first tobacco-style JCM card sets out there. There are over 69 cards, measuring 1 13/16"x3". The backs have side "arrow" designs, and a unique (though duplicated) menko number at the bottom. Below I've listed an uncatalogued card that I spotted on ebay.

Kazuhiro Yamauchi