Hi Raimey,
very many thanks for the reply. I was intrigued by the rather enthusiastic "NOT ENGLISH MAKE" stamping on it! Holts detailed it thus; "29 1/2in. nitro reproved barrels (pitted), 2 1/2in. chambers, bored approx. 1/4 and full choke, treble-grip action, carved percussion fences, rebounding locks, border and bold foliate scroll engraving."
It's my first hammer gun as I fancied trying something a bit different without jumping straight into black powder. The graining to the stock is beautiful and it does have a lovely comfortable hold to it though I haven't taken it out for a proper play yet.