Bright, colorful wrapper for the distinctive "Diamond Stars Gum" baseball set released from 1934 through 1936 by National Chicle, catalogued R327 by The American Card Catalog. The wrapper itself shows clear use for retail sale, with typical folds and a yellow mark that is evidence of its original seal. It has otherwise survived well, with all text legible and a strong main image. The implied "Cleveland" pitcher of that era could be 1930s franchise stalwart Mel Harder, if you look for a clear inspiration.
The language on this wrapper implies a release date after 1934, possibly 1936, as the company made its wrapper language more general to allow for broader exchange of photo premiums ("etched wonder photos") at store counters. The photo premiums this wrapper refers to could be one of three different sets made by National Chicle, cataloged as R311, R312, and R313. The third, nicknamed "Fine Pens" for their thinner captions, prove easiest to find today, so we can assume their distribution coincided with the period of highest sales for Diamond Stars Gum itself.