Book Value? "The Twelve Revolvers" by S&W.

Back when Ellet Brothers released the set of "Twelve
Revolvers", I also got the book of the same title
with all the pictures and blue prints of the 12 guns.
I long ago traded the guns, but somehow couldn't find the
book at the time.
A gentleman that has a set of the guns but no book would
like to buy mine.
What would be a fair price for it?

NRA Benefactor Life Member
Browning Collectors Association Life Member