JCM 70: 1960 Maruten Grey Pitching Back

I've included below an uncatalogued one I saw on ebay:

JCM 65: 1957 Maruya Color Menko 1

I've included below here an unlisted example that I found on ebay.

JCM 57c: 1960 Maruya Green Pitching Grip Back

JCM 57c: 1960 Maruya Green Pitching Grip Back is another in a number of varieties featuring a cool pitching grip/advice backside. There are at least 33 cards in this set, and I've included some that seem to be uncatalogued as of yet.

JCM 57a: 1961 Maruya Green Pitching Grip Back

I'm including below an uncatalogued one that I believe belongs to this set that I saw on ebay:

JCM 42b: c.1959 Marusan Simple Back, Border, Info Back

Tanaka

Balbon

Iida

Takakura

JRM: Uncatalogued #37

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #36

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #35

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #34

JRM: Uncatalogued #33

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #31

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #28

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #26

JRM: Uncatalogued #25

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #24

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #23

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #22

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #19

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #18

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #16

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #14

There are a number of uncatalogued round menkos. This is one group that I've put together.

JCM 12a: 1959- Marusan Simple Blue Back

Not sure which of the JCM 12 sets these belong to:

JCM: Uncatalogued #13

There are a number of uncatalogued sets that I've found so far. This is one of them.

JCM: Uncatalogued #9

There are a number of uncatalogued sets that I've found so far. This is one of them.

JCM: Uncatalogued #6

There are a number of uncatalogued sets that I've found so far. This is one of them.

JCM 120: 1950 Red Border

Fujimura

Kato

?

JCM 107: 1948 Scoreboard and Player Uniform with Number Back

JCM 107: 1948 Scoreboard and Player Uniform with Number Back features 8 cards, 1 11/16" x 2 5/8". One of a number different menko series that feature a scorecard, this one should have a small cartoon of a player, and a scorecard at the top. However, my cards do not have this. They instead feature the back of JCM 182. Either this is a printing error (doubtful), a new uncatalogued series (possibly?) or JCM 107 has a couple of options for the backs of the cards (in which case, it probably needs a new name for the series).

JRM: Uncatalogued #10

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #9

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #5

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #4

JRM: Uncatalogued #3

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM: Uncatalogued #2

There are a number of uncatalogued round menkos. This is one group that I've put together.

JRM 60: 1948 Numbers on Tiles

JRM 24: 1947 Math Equation in Circle

JRM 24: 1947 Math Equation in Circle has at least 26 cards that are 1 7/8" in diameter. This time, the math problem is in a small circle. I especially like Kawasaki's card with the goose. I'd assume this was a prize for being the best at something, and it would eventually end up as dinner. There are a few generic baseball cards in this set, and I've included another uncatalogued one here.

JDM: Uncatalogued #11

There seem to be a lot of diecut menkos that are not in the catalogue. I've tried to group mine based on similar backs. Many seem to feature high school or university teams, but some feature pro players.