US 1934 National Stamp Exhibition ; Byrd Antartic Expedition II 3c. Imperf. cott. 735a


US 1934 National Stamp Exhibition ; Byrd Antartic Expedition II 3c. S/S Imperf. Scott. 735a


Series: National Stamp Exhibition Issue

Stamp details: Byrd Antartic Expedition - World Map on van der Grinten Projection

Issued date: 10-02-1934 (dd/mm/yyyy)
Face value: 3c.

Emission: Commemorative
Watermark: No Watermark

Catalogue No:-
Scott (USA): 735a
Michel (Germany): 359B
Yvert et Tellier (France): 323a

Dimensions (height x width):
40mm x 25mm

Printer: Bureau of Engraving and Printing
Print Method: Flat plate

Stamp Colors: Dark blue
Perforation: Imperforate
Gum: Without gum

Themes: Map, Globe, Explorers

Total print: 23,000,000 (estimate)

Note: The Farley Special Printings of 1935 3 Byrd Antarctica Expedition II

Description:- The van der Grinten projection is a compromise map projection, which means that it is neither equal-area nor conformal. Unlike perspective projections, the van der Grinten projection is an arbitrary geometric construction on the plane. Van der Grinten projects the entire Earth into a circle. It largely preserves the familiar shapes of the Mercator projection while modestly reducing Mercator's distortion. Polar regions are subject to extreme distortion. Lines of longitude converge to points at the poles.

Source: en.wikipedia.org/wiki/Van_der_Grinten_projection