Topographical map 1: 50 000 — Edition State (1979-1989) N-33-123-B Berlin NW

The topographic maps, referred to as the issuing State (AS), were primarily for military purposes and carried the level of “confidential classified information”. Content levels of TK50 AS are: Floor Plan/Grid Net-Black, Water Blue, Relief/Street Filling/Building Areas-Red Brown, Forest Area Green.由印发国（AS）发布的地形图，主要用于军事用途，密级为机密级。TK50（AS）系列地形图的内容配色规范如下：平面图/格网采用黑色，水系采用蓝色，地貌、街道填充及建筑区域采用红棕色，林区采用绿色。