Original 1938 Dental trade magazine vintage ad for the PROCO-SOL CHEMICAL COMPANY, INC.  Main office and plant were located at 1233 Spring Garden Street, Philadelphia, PA.

Manufacturers of Dental Local Anesthetic. 

'As Clean as a Hound's Tooth'

... Is not clean enough for a modern local anesthetic. A canine's cuspid, under microscopic examination, reveals thousands of active germs, harmful bacteria that must not be present in a safe anesthetic. That is why microscopic care must be taken in compounding Proco-Sol Procaine solution with Epinephrin, the modern, scientifically controlled local anesthetic. It must be more than clean, it must be positively sterile! 

Has product image, illustration, description and application provide product details.

Unbound from a rare 1938 American Dental Journal magazine, this unique old one-page dentist advertisement would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro dental industry library.