1. I have no idea what year my Railegh is. I've always kind of wondered. I'm guessing early 80s. The Serial number is N1E0215 if that tells you anything. I got it at a garage sale for $25 almost 10 years ago, so I've probably put at least 10K miles on it.

2. I don't know if the threading is standard or not. I also took apart my Bianchi Mixte from a similar era. The Bianchi had a slightly smaller bottom bracket with 3 notches from the lock nut, which seemed more standard as my Park Tool spanner was able to fit the 3 notches side. The Railegh lock nut was slightly larger, and had 4 notches, so I had to use the single notch side of the spanner.