I would second Mr. Craig C's comment. I thought my S&W K22 was good until I found an earlier one in the red box. I thought that was good until I found a Ratzeburg Korth. But I can only speak for the 22s, I've never handled or shot the larger calibers. Recently I've noticed a fellow in Florida offering several used Korth's in 22, that seem to be good based on what you can tell from pictures. If you're interested, I'd ask him how he came to have so many Korth's and hope he offered a reasonable explanation that didn't permit speculation about them having been abused. For example, did they belong to a gun club where they might have been abused, or is he just a collector disposing of a life-time accumulation. In any event, if you can find a good one and it's not an economic hardship and you enjoy shooting 22 revolvers, I would recommend one.
The FL source was acquired from the German government, I recently bought one and it's great. I suspect it hadn't been shot for decades, the action was a bit stiff at first, after lubrication and about 1K action cycles at home and at the range it is much better. Absolutely the finest handgun I've ever owned, and I have a Python and have had a Manhurin (albeit a beater former cop gun) and a Sig P210. The seller said when he was putting discrete import marks on them it was the most difficult time he'd ever done that due to the hardness of the steel.
Will post a review when I get a chance.