I realize this is a long shot, but thought I would see if anyone might have the sale catalogue "A Review of 162 Antique Arms" Auction at the Radison Hotel, Zurich Switzerland 1976, by Robert Held. I've been trying to find a copy of this, but am having no luck. Specifically I am looking on information pertaining to the mark used by the Medici family, of Florence Italy, on firearms. I understand Mr. Held discusses what he refers to as the "Medici Mark".
Thanks,
Jim