Velhagen & Klasing Map of Western Russia

[Pauls1970]

Hi Guys, picked this map up last week. Map measures 102cm x 79.5cm, paper appears old (has an old stored smell too) & is of eastern Germany, the divided Poland & western Russia. There is no date on it, but going by the borders it's between Oct. 1939 & June 1941, also on the back of the map is a list of other maps in the series, priced in RM (Reichsmarks), so more than probable an original map, of the Period & not post-war, unless it is a known re-print. I'm thinking that this is probably a map produced for the military as opposed for the public, but not sure, can't seem to find out to much information about the firm & the maps that they produced.
Regards Paul