Hi stampbaby, This looks like a reprint of a 1930 stamp from Ethiopia, SG 279 / Sc. #211. SG calls the original 2g value "bright ultramarine".
2 November 1930 was the coronation of emperor Haile Selassie.
Picked up a "hoard" of homemade albums last week and have a few "bafflers!" What Country??
re: Looks like Eastern Europe? Need help on this one??