German Empire Stamp with Rhombus Watermark

German Empire · 1905 · 5 pfennig

This image displays the 'Rauten' (rhombus) watermark, a security feature found on definitive stamps issued by the German Empire in the early 20th century.

The 'Rauten' watermark was an essential anti-counterfeiting measure for German Empire stamps, reflecting the postal administration's efforts to secure its revenue during a period of significant national development and postal expansion.