First Day of Issue = December 7, 1932
Size: 39.00 mm x 25.00 mm
Quantity printed = 11,020
Perforated 10.00 x 11.50
Print method: Lithography

Issued to shows stages of aviation development. This stamp shows Wright brothers biplane.

Watermark



Catalog numbers
Scott CB12a
Michel LV 213B

For more information check out the links below
Latvian airmail semipostal stamps
Latvian aviation
Wright brothers