Actually the A was the Model 1893. There were B, C, D and E variations of the Model 1897/97. About the last 600000 were E variations.

I long wanted one as two of my great interests, Harold Money (De Shootinest Gent'man) and Ansley H. Fox, used them when they were Knights of the Trigger for the big W. Finally picked up a high condition, very late E version with serial number just over one million. Lots of moving parts, and if not pumped just right your done. No forgiveness. Can't get away with a double shuffle as one can with a Model 12/42 or Remington Model 31. Happy day when I traded it off on another Browning Superposed.

And, watch the position of your right thumb!! I've seen some serious bleeding at vintage pump gun events when the breechbolt of a Model 97 lances open a shooters thumb.