English: Thoroughbreds by Hy Hintermeister. Published as a calendar print in 1935 by Brown & BIgelow. The copyright book didn't record the artist name for the Brown & Bigelow print registered; name came from artist's signature. Unclear whether Henry Hintermeister or his father John Henry Hintermeister painted the image.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
Uploaded a work by Hy Hintermeister (either John Henry Hintermeister or his son Henry Hintermeister) from [https://www.worthpoint.com/worthopedia/1935-vintage-12-month-pin-advertising-1927611866 Worth Point] with UploadWizard