https://en.wikipedia.org/wiki/Edge-notched_card https://en.wikipedia.org/wiki/Edge-notched_card "Needle Card", "McBee Card", "Indecks", "E-Z Sort", "Cope-chat"

https://en.wikipedia.org/wiki/Edge-notched_card https://en.wikipedia.org/wiki/Edge-notched_card "Needle Card", "McBee Card", "Indecks", "E-Z Sort", "Cope-chat", "Keysort", "Flexisort", "Velom card", "Rocket card", "Slotted card" and variations on those all redirect to that article[1]. 1: https://en.wikipedia.org/w/index.php?title=Special:WhatLinksHere/Edge-notched_card&limit=500 https://en.wikipedia.org/w/index.php?title=Special:WhatLinks...