1923 (July) - 31. POSTAGE DUE. As 1st issue of 1921 but prepared from New Plates made in Vienna (smaller size: 21½ × 28 mm against 22½ × 28½ mm, and with mostly redrawn numerals). 10p rose-red, 30p yellow-green, 50p violet, 1D brown, 2D blue, 5D pale orange, 10D maroon, 25D pink and 50D deep green, Perf L10½ or L9. Very fine mint never hinged set of nine. Michel cat. €300+. Very scarce in this condition. (Image)