a 12/65 or better a No 1 double gun

"Description: Cal. 12 Ga., 2 1/2". S# 5798. Bbl. 30" of damascus steel. Full & full chokes. Unusual action, bbl. cammed forward before opening when under lever is actuated. Scalloped round body action with full coverage deep relief engraving featuring fox on right, setter & duck on left with stag head on top tang. Collath wing type tang mounted safety. Extractors. Dbl. triggers. European style sling swivels. Horn under lever & trigger guard. Splinter forearm & checkered straight grip cheekpiece stock of fancy European walnut. LOP: 13 5/8" over horn buttplate with beveled edges. CONDITION: bbls. have 90% reblued finish. Action cleaned right. Refinished stock & forearm with some handling marks & good recut checkering. Bores have areas of pitting. (12-2876/DS). CURIO. $900-1500. "

http://www.invaluable.com/auction-lot/w.-collath-under-lever-sxs-shotgun.-1108-c-647c08e1a2

I see the 5798 serial number in the mid 1890s now