You didn't say whether your gun is stainless steel, but if it is, you should be able to get more than $200. I had one years ago and it was horrible. First, the hammer shattered like glass after just a few shots. Then, after failing to achive any groupings on a target, I found out that the chambers were sort of drilled straight through with nothing to neck down the bullets. In fact, you could drop unseated 185gr JHP bullets into the chambers and they'd just drop through!
So I wasn't impressed with the gun. They might be fun to collect, because they were gorgeous guns; but I wouldn't shoot ammo through them unless I spec'ed out the barrel and chambers first. They can also go off if dropped (unless their internal locks are engaged).