https://photos.app.goo.gl/EfDc3rRMfyfTNdgw2
From my days at Burroughs writing hardware test
programs
96 col cards were the standard on the later 1700's
I had full access from midnight to 7AM but the shop was window only
until the next night.
Turn around time during the day could be as much as 4 hours.
-pete