"You are very welcome Sir!!!
That was a great read of a time in Africa when all those guys had to keep themselves alive was....Their wits, a whole lot of guts, and a James Purdey!!"
Old R. Gordon Cumming's Purdey 16 bore double rifle #1933 is still about. Auctioned for the family by Holts, I believe, in the 80's It is complete with most accesories including molds loading mallet, and spare mainsprings. The rifle appears to have been refurbished by Purdeys before and after the 5 year trek. [evidence on the rifle itself]
In reading "Five Years in the Far Interior of South Africa", it seems the Purdey did not get as much use as his other double rifles; notably his Moore, Dickson [blew up], and Westley Richards [acquired while there to replace the Dickson].
The rifle is in fine condition with bores still excellent. The case is still solid, but looks as if it had been rattling around in the back of a wagon for a while.
He also states "The Purdey was also a tried friend, both it and the old German having been with me in several campaigns on the plains and jungles of Hindostan."
Guns with history are great!
All the best, Mal