New York, New York c. 1926A New York City Department of Health Inspector takes a lactometer reading on the distribution platform of a pasteurizing plant. It measure the specific gravity and therefore the richness of the milk. Editorial Stock Photo - Afloimages
New York, New York: c. 1926
A New York City Department of Health Inspector takes a lactometer reading on the distribution platform of a pasteurizing plant. It measure the specific gravity and therefore the richness of the milk.