30 Mark Posthorn in dark brown, 5 horizontal pairs as a rare, correct-value multiple franking on an international letter from LEIPZIG 29. 6. 23 to Schwyz (arrival stamp), photo certificate Winkler BPP "genuine, 2nd pair from the left with corner perforation error, otherwise all pairs with very good perfs, letter trimmed at the top and slight traces of handling, overall good condition", Michel 1. 000.- +