Comment by whatevermang

I suppose it'd be easier for someone to buy one of each of the comics, rather than an industrial size printing press used to print comics and hold onto it for 70 years.

I dont think ink, on it's own, has a 70 year shelf life either.

And, aside from having the setup to print stuff with, you still need the source material (presumably printing plates or whatever) which is where the actual forging comes in. Assuming it was printing plates lets say, you'd need to copy them to a microscopic level along with every dot on a matching comic book.

That's probably quite hard.