First Day of Issue = November 18, 1938
Size: 39.25 mm x 29.50 mm
Quantity printed = 4,700,000
Perforated 10.00 x 11.50

Part of an 7 stamp set honoring the 20th anniversary of the republic. Stamp shows President Karlis Ullmanis.

Catalog numbers
Scott 203
Michel LV 267

For more information check out the links below
Karlis Ulmanis