Hello,... Can anyone tell me if HARTKOPF & Co are a rare maker, also what would a minty example be worth? Thanks

Hello Howard, welcome to the forum.
Hartkopf & co is quite a rare maker,you do not see that maker very often.
The way prices are going at the minute,it could be as high as £700, regards nats

http://www.stan-the-man.tk/

Cool Maker mark indeed. I'd like to have an SA with that maker. Please post more pics of your example. John

WOW, look at that grip to crossguard fit!! Just great! Lets see more of this one John! Kevin.

"Minty" examples by this rare maker have long been gone into major collections. One hardly sees this maker anymore. A "minty" example would be gone with a phone call.
If you can find a truly unmessed with example in excellent+ condition, $1,400 IMO would be a deal.

-serge-