I'm looking at a JP Sauer SLNE, SN 878XX, 12 ga. It's stamped "The Knock-About Gun" on top of left barrel; Lengerke & Detmold, NY atop right barrel. Barrels has 2 9/16" chambers marked Krupp Steel, Germany (abutting standing breech). Sauer proofs on flats, along with crowns, and 13/1 left and 13/4 right (both followed by circled 12). Other letters on flats (with adjacent small crowns): B, S, U on right; and B, S, W on left. SN repeated on left barrel, under which are numbers 2 04 0. Has dolls head ext. and cocking indicators. Minimal engraving (vaguely reminds me of a basic S05 B-gun).
I thought Sauer SNs were continuous, so am surprised to find a lower number than my 101XXX Prussian Sauer Daly BLNE.
I'm curious about date of mfg, and any other info.
Am also looking for some ballpark figure on value. It's not quite 90% condition, barrel blue becoming brownish, few functionally insignificant barrel dings, almost no case colors left, no cracks in very pretty tiger buttstock, semi-pg to composition buttplate. Right barrel is .722 and cyl. Left is .726 and about .004. There are no parallel sections to suggest chokes being opened by way of reamer. Mechanically perfect.
Thanks,
Sam