This set of of pin-up girl cards were from a series issued by the International Mutoscope Reel Company (I.M.R.) of New York. The company made a variety of cheesecake pinup cards for penny arcade machines. These are sometimes called the 'red girls', circa 1930s. They're all in semi-nude poses. though many are partially covered with a carefully placed veil or arm.

Cards measure 5.25 by 3.25 inches. Like most arcade cards, these all have blank backs, not postcard backs.

Aside from the red coloring to all the cards, some of the pin-up photos were touched up with hand illustration, giving them aa distinctive style.

Cards are marked I.M.R. CO. N.Y.  MADE IN U.S.A.

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