Raimey,
Of course you are right about BSW, I didn't take the time to look it up. Unless I missed it again, Emil Kerner added an interrupting sear to the Anson and Deeley action, so I believe we are thinking of the same thing.

ENM,
With the exception of the precise name of BSW, the additional photos verify my guesses.
Mike

Last edited by Der Ami; 12/31/18 07:18 PM.