Thanks Pete! I just bought one pretty cheap. It's on it's way. One owner closet horn, body and mechanics perfect and still the original pads--playable--with original mpc and cap. Lacquer has a few age spots but basically no wear. I'm kinda excited...I'll do pix as soon as it arrives.
It really appears that the only difference is the addition of pearls to the alt F# and G# keys. Interestingly, the only difference between the Modéle 22 Bb sop and the BA curvy is the addition of that same F# pearl.