Yes, I agree. Thank you for the advice and leads, much appreciated! I will dig into these. The archive is scoped to letterpress only, so that will automatically skew it more towards latin based typographic cultures, but I would like to find more non Latin stuff, especially Arabic. Haven't yet found very good archives for that though.

Some Japanese letterpress works I already have catalogued, and they're amazing:

https://garden-of-flowers.heikkilotvonen.com/?filters=japan

A recent blogpost by Jacob Filipp has good info on it:

https://jacobfilipp.com/hana-no-shiori/

Unfortunately the Japanese archives that I've found have mostly poor quality microfilms though, which makes further search a bit unmotivating.