Ralph Kiner exhibits / postcard help

I know nothing about these but picked up a few in a collection today. The best I've done is figure out it's one of the exhibit cards that are dated 1947-66.
The basic ones seem easy to find on ebay. Example here
There is one green tint variation on ebay - example here
The (pretty beat up) one I have is a pinkish reddish tint. Scan below. Anyone know anything about these?
Much appreciated
The basic ones seem easy to find on ebay. Example here
There is one green tint variation on ebay - example here
The (pretty beat up) one I have is a pinkish reddish tint. Scan below. Anyone know anything about these?
Much appreciated

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Comments
My concern on yours is that I don't see the number on the front like all of the ones I have.
Exhibits reprints are pretty common, what does the back look like?
Always looking for Topps Salesman Samples, pre '51 unopened packs, E90-2, E91a, N690 Kalamazoo Bats, and T204 Square Frame Ramly's
My concern is that the number that is commonly present on Canadians isn't on yours.
I called Adam Warshaw, who is an expert on exhibits and he thought the same thing. Here's his site
Exhibits
Always looking for Topps Salesman Samples, pre '51 unopened packs, E90-2, E91a, N690 Kalamazoo Bats, and T204 Square Frame Ramly's
They are all blank, legit and reprints. The difference is what color the stock is. And I'm not sure the Canadians were ever reprinted.
My concern is that the number that is commonly present on Canadians isn't on yours.
I called Adam Warshaw, who is an expert on exhibits and he thought the same thing. Here's his site
Exhibits
Thank you. Actually ended up with a number of these, mostly regular issue so this ste will help. Thanks again.