COUNTY OF LONDON KARTE - BLATT 1 OFFIZIELLE VERWENDUNG EISENBAHN & U-BAHN INTERESSE 1924
DATED FOR 1924. UNDERGROUND RAILWAYS & STATIONS. AN ANTIQUE MAP OF THE COUNTY OF LONDON -SHEET 1. A LARGE FOLDED COLOUR PAPER MILITARY MAP, SHOWING IN PARTICULAR DETAIL:-. MARKED " FOR OFFICIAL USE ONLY ".