XXXI   Commemorative issue of 1st October 1928

Issued to commemorate the 50th anniversary of the annexion of Dobrogea

Non-adopted types

XXXI  A    Printed on glaced paper
1. 10 L Carmine 2. 10 L Slate green 3. 10 L Brown
4. 10 L Blue 5. 10 L Violet 6. 10 L Green

XXXI  B   Printed on very thick paper

1. 20 L Carmine 2. 20 L Green-blue 3. 20 L Blue-green 4. 20 L Brown
5. 20 L Brown-lilac 6. 20 L Violet    

Except from these essays Cohen mentions two projects of which he has reproductions. These has, just as XXXI A, the wrong year for the annexion (1888 instead of 1878)
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