Jan Gray on X: "Three lovely calculators. Commodore 9190R, HP-67, TI-59. The 67's card reader works fine; the 59's sticks and leaves rubber goo on cards. https://t.co/4d1F55m5hZ" / X
File:Texas Instruments Red LED TI-59 Programmable Personal Calculator with Magnetic Strip for Storing & Reading Programs, Circa 1977 (8487825200).jpg - Wikimedia Commons
TI-59 / TI-58 - Wikipedia
Texas Instruments TI-59 Programmable Calculator with Case and Cards - UNTESTED | eBay