Just about to work on a fairly crisp A409 c 1954 unusually clean for one of these, it's going to be ready by the end of next week, with a suitably big price tag. Some small What I call pawn marks on the outside of the case, no servicing records in the case back. If youre looking for an unbeatable example of the model that went up with the Everest team this is the one. Looks better in the flesh so to speak.