Those holes are one inch apart, just top off the middle of head part.
I compared tubes to another bike that I know for sure it wasnt painted as I got raw frame from frame builder and I think this bike was painted before.
Someone did a really good job stripping and cleaning it (but was not sandblasted)

I usually dont really care what brand of bike I'm working on - especially that I usually got frames or whole bikes for free or very cheap. but I really wonder this time. If should I try to repaint it as it was sometime ago and try to restore it or just follow my imagination. like here: