Neither o nor 0 is crossed in the architectural lettering - that's the letter Ø. There's a few other non-modern-English letters in that initial alphabet line as

Neither o nor 0 is crossed in the architectural lettering - that's the letter Ø. There's a few other non-modern-English letters in that initial alphabet line as well. https://en.wikipedia.org/wiki/%C3%98 https://en.wikipedia.org/wiki/%C3%98