Yes the seller is honest! the NR states it clearly I think.
What are my criteria ?
In fact, you can notice that there is a black metallic shape around the lens mount that is typical from cameras made by KMZ, also the VF window (rectangular one) is not shaped like it should be on a Leica. Finally, the speed select button feel really cheap, KMZish, same you can find on whatever KMZ camera and even on Zenit 🙂
Regarding the lens, the I-22 base circular area has 2 "rings" engraved on it, the I-22 also uses a ring to rotate the blades instead of the little switch on real Elmar lenses.
Ah well... 😉
Maybe i'm just addicted to the forum that's why I bother 😛