I guess I know how attractive the little suckers are, but I wouldn't buy one I couldn't try out for a couple of weeks for $300.
They should look like these:
All handbuilt, all glitchy today.
I got on a kick a while back and took them all and tried firing them. One worked good, the rest worked...sometimes.
I bought new spring kits for all four and cleaned them up with new springs. The one that worked worked better, one of the sometimes shooters got a little more reliable and the other two stayed about the same.
Two of them have worn safeties that key their operation but I haven't found a source for new ones. I don't think I really want to find any because I couldn't be sure that they'd work in these pistols. Hand fitting is like that.
Tell the truth, most people would think I was nuts to even try shooting them - they've achieved a status of collectible that only requires that they be interesting to look at and maybe talk about.
I still like them, but I only pull them out once in a while to make sure they're not rusting. I always kinda' marvel at them because they speak of perhaps better times and I've always liked mechanical novelties.
Pretty little things and you've gotten some enjoyment from looking at and handling one. Leave it at that and buy a gun that works.