First Day of Issue = May 1, 1928
Size: 36.00 mm x 30.00 mm
Quantity printed = 200,000
Perforated 10.00 x 11.50
Print method: Lithography

Airplane (a Blériot XI) flying over Riga. Similar to C01.jpg except denomination is in santimes and not rubles

Watermark
Watermark


Catalog numbers
Scott C3
Michel LV 129

For more information check out the links below
Blériot