Original vintage optical industry trade magazine ad for BAUSCH AND LOMB COMPANY of Rochester, NY. The Hemoglobinometer is of colorimeter type, hence very accurate for blood determinations. Old 1922 optical industry medical instrument advertisement.
Original vintage ophthalmic industry magazine trade ad for BAUSCH AND LOMB COMPANY of Rochester, NY. Bausch & Lomb, leaders in the development of Photomicrographic Equipment. Pictured ..