Tables without vertical columns?

[-JKP-]

...Also there's a bunch of rigidly positioned o's and some larger initial characters which look like they might be easily converted to gallows:

...

Yes, FYI, in Greek the character in the third column that looks like EVA-k is a ligature for "po" or "peri" (sometimes "pe") depending on context. It's pi and o combined. Depending on the handwriting, it often has a straight leg on the right, instead of a curve, exactly like EVA-k. It's also a ligature in Latin, German, and French (with different meanings).