|Leighton Street on Etsy features these prolon lunch trays! How cool!|
Florence, Massachusetts often referred to as Northampton was home to the Prophylactic Brush Company whose later Prolon Plastics division would make the dishes.
This post examines the site of the original Prolon plastics factory and history of the Brush Company with rare early ads and photographic examples.
We are adding it to the Prophylactic Brush Company and Prolon Plastics tab!
Nothing like killing two melmac encyclopedia birds with one stone!
Note: Prolon is still in business today in another state and capacity.