In a big house cleaning several years ago:
I tossed out a dozen empty cans of IMR 4198 in yellow labeled metal cans with a retail price sticker of $2. on them.
Probably 20 empty metal cans of IMR from the 70-80s.
And 5-6 of 1/2 pound empty metal cans of a Norma powder with a paper label for loads
to go in .38 S&W on them.
And a empty 4 lb. cardboard Unique can with the top cut off I used for a waste basket.
I had no idea anybody would ever want them for a 'vintage' collection.
At the time, they were about as valuable as last week's empty candy bar wrappers.
The empty cans sell on eBay for more than I paid for most of them when they were full.