Originally Posted by
vintagerando
The BB thread is English. The BB shell is stamped "EDA" (havent researched it yet). The bottom of the BB is marked "R A M" which I think could be the frame builder, maybe?? No idea. Or maybe the original owner of the bike? It looks DIY, like someone did it at home.
OK, based on this I'm solidly guessing "British" but could hedge just a little for "Dutch" only since I'm not 100% solid... and not sure who or if the RAM initials mean builder or owner (as you suspect). When you get the fork off see if there are any clues on the steerer. Is it a recessed bolt brake front and nutted brake rear?