Lodi California 1918 Gammon Tuberculin Tested Milk Billhead 8 x 4

This 1918 billhead documents routine household milk delivery during a period when public health reforms reshaped how dairy products were produced and sold.

Early twentieth-century concerns over tuberculosis and milk-borne illness led to widespread adoption of tuberculin testing and stricter regulation of dairies. In agricultural towns like Lodi, certified milk suppliers played a direct role in translating these reforms into everyday commerce through home delivery and itemized billing.

The billhead is printed for Gammon’s Tuberculin Tested Milk and dated February 1, 1918. It itemizes cream and milk quantities with handwritten charges, reflecting a subscription-style delivery model rather than a single retail purchase. The format emphasizes product category and volume, underscoring how safety certification became a selling point in ordinary household transactions.

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