10l. orange on white, double printing of "1" in the same color in a distance of 2.5mm!! canc. "ΣΥΡΑ*11.ΙΑΝ.76". Two large-very large/two narrow-clear margins. Maybe on other positions of the sheets both digits were printed double. Rare and very fine for this. Not mentioned in Koundouros study. (Hellas 50aNoI).