S&Sohn Model XIV E. Very nice find as few round tops are found with the late date- I have a very similar one , a heavy , long , tightly choked waterfowl or pigeon weight gun, but cataloged by V,L&D as a model 280E , corresponds to a S&Sohn mo. XVII ( 1926 man ), but Not a round top action.
The XIV did not come with the 3-ring “ Spezial “ steel barrels as the XVII model did. V, L&D did catalogue a mo 240 that might have come with the lower grade barrels , but these would normally come with extractors rather than ejectors as your gun has .Might have been a special order for an early round top action and fitted with the lower grade barrels with ejectors to expedite ??
Looks to be in very nice condition, wonderful find . I prefer the looks of the round tops, but no difference in performance. Mine has smote a fair number of green heads the last couple of years!
Best Regards,
JBP
