I am replying to this very old posting about The Silver Stallion. I own one, also, that is NIB. I traded for it with a good friend of mine whose father owned a gunshop during the 1960-2000 period. My friend said his father ordered the Silver Stallion from Colt about 1983, I believe. My information is that the guns were numbered between 1-350 since the plan was to only build 350 maximum. I am not sure if all 350 were built and sold since I have only seen two others before the two postings on this Forum. Since I attend many gun shows and follow the electronic advertisements, the fact that so few have shown up makes me wonder if all 350 were built.
A negative on this gun is that the fellow who does The Blue Book of Gun Values has obviously never seen or heard of one since it is not listed in his books. As you probably can imagine, if a dealer cannot find a gun in The Blue Book, they shy away from buying one. If they cannot even find where one is for sale or has sold on the internet, they get really afraid to buy one.
I do recall seeing serial number 1 Silver Stallion for sale several years ago for $3500. I value mine in the $2500 range.