Jim, a few more for your database;

1st Models;

#5719; "Smith & Wesson .455". A gorgeous Commercial but not listed anywhere as such (no letter). Shipped May 1915. Birmingham proofs very neatly applied to each cylinder flute and to the barrel.
#8493; No caliber markings. See post 106 above.
#12847; "Smith & Wesson .455". Shipped Dec. 1917, probably to Shapleigh Hardware. Roy Jinks advised me this would letter as chambered for .455 Colt.
#15015; "Smith & Wesson .455".

2nd Models;

#15877 and #15980 are marked "Smith & Wesson".
Following are marked "Smith & Wesson .455", #'s 68103, 39155, 39645, 32061 and 47474 (see post above re 47474).