Nice find! USPC used Bicycle branding for bridge decks without the typical filigree backs in the early 1930s. Is there the standard Bicycle ace? What about the jokers? If the jokers are in color and say "Multicolor Series" or similar, then you have a harder-to-find specimen. USPC produced full-color.Bicycle jokers for a short time with these decks, to attract bridge players who wanted a bright, attractive and more sophisticated appearing pack of cards. Hence the embossed label on the box also. These came as bridge and other at-home card night games were soaring in popularity. The Art Deco back came in several colors.
Enjoy.
Chris Turner