The arrow through the S is the patent mark for Snider and should be on every Snider except for military/ordnance rifles/carbines
One of my Sniders is made by Hollis for the Board of Ordnance, without it, all others have it

J.C. & A. Lord were general merchants and supplied Birmingham trade arms amongst much else
I do not know of any that did not come from Nepal??? anyone?

Douglas - I got mine from Uncle Joel at the same time as yours IIRC

TH44