Heinrich Köhler 384 Auction – Day 2 Single Lots & Airmail and Zeppelin Mail – inclusive the collection of the Sieger family

1867, Stock Exchange Postal Forgery 1 sh. green, Plate 5 (EA), together with 3 d. rose, Plate 8 (FF), both with fresh colours, nicely centered and perfect perforations, tied by cds. “STOCK EXCHANGE JY 26 72” to a small piece, extremely fine, signed Köhler and certificate K.-A. Louis BPP (2024)