...That has established what is essentially a virtual shrine to these high quality revolvers.
http://www.1960nma.org
They will be very interested in knowing the particulars of your revolver. They are seeking to catalogue every one which was ever made and your info could appreciably add to their knowledge base.
These revolvers may actually be a closer approximation of the original Colt 1860, than the Imperato marketed second and third gen Colts.