It really is an opportunity for a seminal work on the S/SO series; digging the variations and connections is indeed fun, but it would sure be nice for somebody to put together the entire puzzle. If this has already happened, I'd sure like to learn of it.
As an aside, about 25 years ago I owned a 1948 vintage S3EL also engraved by A. Baglioni, with double triggers, made for a wealthy Greek financier with small hands (I had the tight pistol grip removed by the English gunsmith from whom I bought the gun).
I also really believe, despite the recent increases in prices in the last couple years, that these guns remain sleepers on the market. True back action sidelocks, complete with intercepting safety sears, done up in true "best" tradition - the current price of new ones (arguably not as good as some a few years older) speaks to their quality.
