Lot 10289 – 1943, Birthday of Princess Ferial, 5m + 5m brown-lake,

1943 Birthday of Princess Ferial, 5m + 5m brown-lake, pane B, colour trials in two vertical strips of five showing an array of varieties from different positions including pos. 5 & 15 accepted size ovpt and colour green, pos. 25 & 35 large size ovpts, heavy impression in green, pos. 45 large size ovpts, thin impression in green, pos. 55 large size ovpt, heavy impression in green, pos. 65 accepted size ovpt and colour green, doubled, pos. 75 accepted size ovpt but in colour blue, pos. 85 accepted size ovpt but in greenish-yellow, doubled and superimposed, pos. 95 without ovpt, with albino inverted on the gummed side, a wonderful and unique showpiece, cert. Charles Hass