A mobile milk control field laboratory, Pennsylvania: two men wearing white suits take a large thermometer from the back of the van. Photograph, 1920/1930?.
- Date:
- [1920/1930?]
- Reference:
- 582384i
Licence: In copyright
Credit: A mobile milk control field laboratory, Pennsylvania: two men wearing white suits take a large thermometer from the back of the van. Photograph, 1920/1930?. Wellcome Collection. Source: Wellcome Collection.
