Every so often I scan
ebay listings on various stamp vending machines that may be offered for sale. Although I have no room to store one and no need to ever buy one, it does take you back to the time when these things were commonplace in virtually every convenience store around.
Here's one that I have very little information about but it is certainly an old timer as stamp vending machines go, as it dates back to 1893:

Is any one aware of any stamp machines that are older than that?