Memorabilia: Salvo Package

Today's Memorabilia isn't quite a supermarket-related item, but just a generally cool history item.

Like the rest of the memorabilia I've posted, I found this part of a laundry detergent package in my grandmother's basement. Based on the little research I did, it appears to be from the 1960s or 70s. Salvos were tablets about 3" in diameter that you would put into your laundry.