1879, 25 c. violet/black, tied by blue Cyrillic "SOFIA 16 V 80" to letter sheet to Karnobat with rare Russian type arrival mark, very fine and scarce, certificate Penev (2022)

1879, 50 c. blue/black, tied by bold star cancel to small registered envelope from Grabovo via Sevlievo and Kazanluk to Plovdiv in Eastern Roumelia with transit and arrival marks, very fine and scarce, certificate Penev (2022)

1871/1907, unused and used holding on eight album pages from Mi.-Nos. 1-4, 8-13 and many more better, somewhat different condition

1879/1910, collection on four old preprinted pages, including Mi.-Nos. 1-5, ex. 21-24, postage due and better values, mostly good condition

1879/2015, at the beginning used from about 1920 on mostly unused collection with better items like Mi.-Nr. 1-5, 24 used, Mi.-Nr. 242-48, 252-258 and 280-85 unused, good condition