Here is 2 complete sheets of airmail labels from H.E.E.S.
Year: 21.6.1933, Gummed. Günter Mair's catalogue no: - GRC-B-2, perforated 11 ½ , sheets of 24(2x12) dark blue/white, "Ω" modified, issued in 20.000 pieces, 5*****
The second sheet of labels were handed to the Greek p.O. by E.E.E.s.s to be distributed to the public and used on mail flying by the Athens-Salonica line. It was also used for transit air mail wich was carried by this line.
Year: Year: 21.6.1933, Gummed. Günter Mair's catalogue no: - GRC-B-3, perforated 11 ½ , sheets of 14(2x7) dark blue/white, 5*****