Posted 08/18/2023 01:27 am
it's a printers alignment mark. (At least that's we called it back in the old days). It made it easier to see where you needed to make your cut when separating sheets with multiple images of the same thing. Pretty much everything now is done on, and by, the computer and very little is done by hand. That's "progress"!
Edited by westernsky
08/18/2023 01:41 am
08/18/2023 01:41 am
