1881, 1pre on 20pa green, through 5pia, overprinted “R.O.” in blue, used set of four, with 1881 10pa overprinted “R.O.” and “ROUMÉLIE ORIENTALE” in blue, usual small perforation flaws, the 2pi with creased perf at lower right, 5pi with thin at top, the 1pre and 20pa signed Mikulski, 2pi with 1997 Holcombe certificate, of overall fine appearance.
