Curious about how t206's were cut from sheets.

[iwantitiwinit]

I wonder if anyone can shed any light on how cards were cut from sheets down to individual cards (most specifically t206's). How many sheets would they typically cut through at one time and once they were reduced to strips how did they hold the stack of strips securely to cut them to single cards? Did they use a jig with two side walls that the strips were fed through so the strips could not move from side to side and splay out when the singles were being cut? If that type of jig were used I'd expect the top few strips to slide forward once the blade hit them unless they were somehow clamped.

Can anyone elaborate on the process and I apologize if this has been discussed before.