After some searches:
- no back movements, so it`s Linhof Standard.
- camera with lesser serial is reported as 1937 sold. Camera with bigger serial is reported, as 1939 sold. But it`s not sure, as I don`t know, on what info is this reports based.
- film holder for it is known as "millionfalz".
- still don`t know, how do distinguish needed holders from a lot of similar Ebay offers.