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Oh wow, that must have been totally different. I enjoy doing 20 of these as a personal project. I'm sure commercial printing is entirely different.

But yes, I'm all for hand printing!

Not at all, back in the 1980s, this is what commercial screen printing looked like. The light tables, colour separation, screen making via light exposure all look very familiar. These days, commercial printing is all digital.
We used Letraset for all lettering. No-one even knows what that is anymore and they can be grateful that they don't