1966 West Germany (Berlin) Deutsche Bundespost 'Brandenburger Tor' 1 DM Stamp

This is a 1 Deutsche Mark definitive postage stamp from West Germany's 'Post Berlin' series, featuring a detailed architectural engraving of the Brandenburg Gate (Brandenburger Tor). The stamp is printed in a dark olive-green or grey-green monochrome ink on white paper. It features a vertical rectangular format with standard perforations on all four sides. The left margin bears the vertical inscription 'BRANDENBURGER TOR' and the right margin reads 'DEUTSCHE BUNDESPOST'. The denomination '1' is clearly visible in the bottom-left corner. A prominent black circular date stamp (cancellation) covers a significant portion of the right side, showing part of the city name 'BERLIN' and a partial date that appears to include '10' and '69', indicating postal usage in 1969. The engraving displays fine linework characteristic of high-quality mid-century German intaglio printing, particularly detailed in the columns of the gate and the quadriga atop the monument. Condition-wise, the stamp shows evidence of postal circulation with heavy-to-moderate cancellation ink. The perforations appear largely intact, though there is minor softening at the top edge. The paper shows slight yellowing consistent with age. This specific design was part of the 'Prominent Germans/Buildings' definitive series issued during the 1960s, a period of significant geopolitical tension in divided Berlin.