np, nd (1930s?). Paperback. Very Good. Item #21-4933
10.5 x 6.5", one sheet, designed to be folded in three for mailing, one side has a promotional letter, the other a colorful image of France's Mont St. Michel with brief history . Postally unused, fold creases, light soiling else good. The laboratory was located at 6504 Chene Street at Milwaukee Avenue, Detroit. "Service to Doctors of Dental-Surgery"