Hi Bisleyboy......welcome to TFF.
Hmmmmm.....well......we can value the guns, but prints, paintings, drawings, etc. are a bit outside our field of expertise.
Of course, there are collectors of such things, so there's a market out there, but I'm not sure that anybody here on TFF is enough of an expert on prints or paintings of guns to give you a realistic evaluation.
Anybody got any ideas on this?????