I didn’t know they existed until I got my first started dog out of a Kansas kennel. The second dog (black), and elderly now, is in the pic above.
Both were outstanding hunters and good for the Midwest falls and winters and just beautiful dogs. To my untrained eye they look like a GSH but they are smooth-coat wire-hairs.
The first (above) is with another owner nearby and still hunting well. This one I sadly had to put down at age 81/2 due to an undiagnosed illness, probably a cancer of some type; still makes me feel badly.
They sure found and locked on the pheasants for me