I find this 1868 Reilly 12 bore, SN 16443, to be quite attractive. It was previously sold at Bonham's in 2004 and is now being auctioned this December by Holts: But wall thickness is 15 & 17.. ..and it is still in proof? Is this possible?
https://www.holtsauctioneers.com/as...++1810+&refno=++221326&saletype=E.M. REILLY & CO.
A 12-BORE 1866 PATENT ROTARY-UNDERLEVER HAMMERGUN, serial no. 16443,
circa 1868, 29 1/8in. nitro reproved bold damascus barrels, the rib engraved 'E.M. REILLY & CO. NEW OXFORD STREET. LONDON.', 2 1/2in. chambers, bored approx. true cyl. in both, wall thicknesses at 15- and 17, Jones patent rotary underlever, carved percussion fences, action incorporating J. Cole and G.S. Melland patent extractors, patent no. 1339 of 10th May 1866, rebounding sidelocks with faceted flat side hammers, bold acanthus scroll engraving with ropework bordering and naive game scene vignettes of partridge, pheasant and grouse, 14 1/2in. figured stock including horn buttplate, fore-end with crosspin release and horn finial, weight 6lb. 10oz.
![[Linked Image from i.imgur.com]](https://i.imgur.com/W4fgKED.png)