Digital photograph of a black and white illustration of several models of dental engine manufactured at the turn of the century (1880s-1900s).
Black and white illustration of several models of dental engine manufactured at the turn of the century (1880s-1900s).
OHSU School of Dentistry
Black and white illustration of several models of dental engine manufactured at the turn of the century (1880s-1900s).
OHSU School of Dentistry
