Demarcation line between the British and Russian Zones based on common usage as at 1 Nov. 1948. (NOT official) : Boundary overprint.
Great Britain.Army.British Army of the Rhine.
[S.l.] : BAOR,
1951-56.
"Overprinted by Survey Production Centre, R.E. (B.A.O.R.)"
Base maps: Germany 1:50,000. GSGS 4507.
Incomplete.