When I was 10 I answered a promotion in a 1930 issue of National Geographic Magazine.
It was for a sample of "Cafe Hag" instant coffee. It was manufactured by a large US company.
The name was Swedish and was said to have failed due to housewives not wanting to confront the moniker "hag" first thing in the morning.
They asked for a dime; I sent them one.
I wondered how large 10 cent samples of instant coffee were in 1930.
I only wish I kept the letter informing me that, "...no further production is anticipated". It was on the company's finest stationery.