Yes, Oliver Jones is right. That's the biggest damn punch card I've ever seen. Normal size I was going to guess at 8" x 3" but actually 7 3/8" x 3 1/4" (Thanks Wikipedia).
Punch cards are normally found in packs, tied together with rubber bands. Mine (in Uni) used to come back with a line printer job log telling you it failed to compile (missing semi-colon on card 27). Normally 24 hours after submission. You soon learned to be careful...
My company has a code freeze December and January - meaning everything gets piled up for release in February. Three years in a row we had major releases over the top of or close to Valentine's Day. Not a way impress spouses and significant others. The fourth year I argued strongly with the PMs and the executives early in January to not have another Valentine's Surprise.
We didn't have a release, but we had a "fire suppression system test" which involved shutting down the datacenter, then the day after everything was turned on (christmas eve, and the metaphorical fires of services that didn't come up quite right were still burning), there was an "energy curtailment" that involved shutting down non-essential systems like the card-key access to the building, so that the folks who were NOT on holiday, STILL could not get physical access to any servers.