In the early 1990s, Seafirst Bank's "Versatel" ATMs in Puget Sound area used to sell First-Class postage stamps as well as (pro-rated) monthly Metro passes (only at select ATMs in downtown Seattle).
I thought it was a cool idea and I used them regularly but it did not seem to catch on beyond Seafirst.
https://info.mysticstamp.com/first-usps-atm-stamp_tdih/
#postagestamps #philately #seattle #seafirstbank #seattlehistory #pugetsound

First USPS ATM Stamp | Mystic Stamp Discovery Center
On May 18, 1990, the USPS issued an experimental plastic stamp to test the popularity of selling stamps through Automatic Teller Machines (ATMs). While the plastic stamp proved unpopular, especially with environmentalists, the ATM format proved to be a success.