Heinrich Köhler 383rd Auction – Day 7 Grand Duchy of Baden – Frankings and Postal History – The Klaus Peter Geis Collection Schleswig-Holstein 1850–1867 – The Rolf Beyerodt Collection

3 Kreuzer blue and 4 Kreuzer brown, both with full to large margins, with closed Mühlrad-cancel "526" and adjacent semi-circular cancellation "TRAUNSTEIN 16 6" on handwritten bishop's cover to Gregor in Munich. An attractive and scarce letter of the 3rd weight class. Photo finding Stegmüller BPP (2024)