Heinrich Köhler 383rd Auction – Day 3 Single Lots: German Empire 1872 – 1945 German Reichspost – Shield Issues – The Michael Rehme Collection (part II)

1 Kreuzer yellowish green with cancellation "MAINZ 1.2.73" in mixed franking 1 Kreuzer dark green with cancellation "MAINZ 2.2.73" on initially underfranked, complete printed matter folding cover (mourning announcement) with handwritten note "noch 1x" (Kreuzer) and then a day later glued second stamp, addressed to Bern, Switzerland in well overall condition. An unusual and scarce mixed franking in this form, certificate Sommer BPP (1993)
Provenance: 353rd Heinrich Köhler auction (2013)