Can I still use this coupon?

Advertisement for Heinz Soup, The American Weekly (Issue of October 10, 1948)

You wouldn't see something like this today. The glaring omission is an expiry date.

But there are a couple of things I do like. The text at the top, "Valuable Coupon", and the request to "Take this coupon to your grocer". Although the word "supermarket" had been around since the 1920s, even in 1948 the smaller grocery stores was still an important part of the food retail business.

At the risk of looking like a complete idiot, I'd almost be tempted to try to redeem this coupon. It is only 67 years old after all.