Bulgaria 1928 Airmail overprints

From Stamps of the World
  • Issue Date: 15 April 1928
  • Designed by:
  • Print Run : 218 x 200,000 / 219 x 100,000
  • Print Process:
  • Perforations:
  • Stamp Size :
  • Bulgarian Catalog Numbers : 218/19
  • Michel Catalog Numbers : 207, 209
BG# 218 / M# 207
BG# 219 / M# 209