Pennsylvania, U.S.A.: a dental hygiene parade: children parade wearing caps shaped liked teeth, bearing banners reading "We brush our teeth each day 100%" and "Progress first". Photograph, 1910/1920.
- Date:
- 1910-1920
- Reference:
- 565692i
Licence: Public Domain Mark
Credit: Pennsylvania, U.S.A.: a dental hygiene parade: children parade wearing caps shaped liked teeth, bearing banners reading "We brush our teeth each day 100%" and "Progress first". Photograph, 1910/1920. Wellcome Collection. Source: Wellcome Collection.
