Hi again
There is also wrong information in book "Suomen Ilmavoimien hävittäjähankinnat 1918-1945" (Atso Haapanen 2002). On page 193 is information of this same plane, and the text says "the finns did true, that the airplane was a Kittyhawk, which was look alike airplane. And that´s why it got a type letters KH (=Kittyhawk). But it´s real type mark was Curtiss P-40M Warhawk."
But Warhawk model P-40M and Kittyhawk III is one and same airplane, like Pentti earlier wrote.
He is one link, what tells about it also:
http://www.p40warhawk.com/Variants/P-40M.htm
Jukka