I have a 1900AE and it is in 'fair' condition. All matching, mismatched magazine. It had a broken firing pin guide when I received it. It's 7.65 so it's not quite as volatile as 9mm, but I still would not shoot it. It has not been pampered by previous owners, and shows it.
But I didn't buy it as a shooter. I bought it to study. It is clearly more meticulously machined than a P08. I can appreciate fine machinery. When it was new it would have been a thing of beauty.