1920 ca, two unadopted essays, one in red and one in blue, designed by Alphonse Mucha with unfilled value tablet, and central vignette exhibiting Girl and Flower, printed on white gummed paper, rare; signed Karasek (Image)

1920, 14Kc on 200h, 24K on 500h, and 28Kc on 1,000h, imperf. set in pairs showing inverted overprint with offset, very fine; signed and Gilbert. (Image)

1920, 14Kc on 200h, 24K on 500h, and 28Kc on 1,000h, imperf. set showing inverted overprint with offset, very fine; all signed, the first two denominations signed by (Image)