It does say "stith-type" mount. Which it could be construed as being by someone out of the know.
No matter how well you try to describe something, God makes a better idiot(not directed at you). Hard to say Lightfoot mount if you don't know it's a Lightfoot mount. Hence, Stith type.
Apples and oranges are very different, but they are both types of fruit.
I'd say, a mount that uses the rear factory screw holes used for a tang sight and the barrel rear sight dovetail as a Stith Type.