This Tupperware ad reads, "She's earning good money–and having fun too! So could you!"
Gift of Glenn O. Tupper
In 1947 Earl Tupper introduced the “wonder bowl” with the two-step seal (press the lid down, then lift it a bit to “burp” out air).
Tupperware party invitation, 1960s
Constitution Avenue, NW
Between 12th and 14th Streets