What I mean is that for instance before I start to seriously collect something first I buy books to instruct myself then I slowly look at what the market offers.
A few months ago I saw an interesting 1911, I was about to buy it when while I was examining it I saw it had a wrong barrel, unfortunately the seller (that here is well known as a serious and experienced collector) insisted that the barrel was right, I had to show him the right book to make him touch by hand that he was wrong.
Then it's also a matter of numbers, if for instance in the States there are 10000 collectors of a specific sort of gun here probably there are 14 - just an example.

Someone, and I won't mention who, is/was a "Prisoner" fan....

Jerry

I composed a "roadmap" of RIAC 2015 C96 sale. The market is not big, but it's stable.