US 1933 Byrd Antartic Expedition 'World Map' 3c. Scott. 733


US 1933 Byrd Antartic Expedition 'World Map' 3c. Scott. 733


Series: Byrd Antarctic Issue

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

Issued date: 09-10-1933 (dd/mm/yyyy)
Face value: 3c.

Emission: Commemorative
Watermark: No Watermark

Catalogue No:-
Scott (USA): 733
Stanley Gibbons (UK): 732
Michel (Germany): 359A
Yvert et Tellier (France): 323

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

Printer: Bureau of Engraving and Printing

Stamp Colors: Dark blue
Perforation: Perf 11

Themes: Map, Globe, Explorers

Total print: 5,735,940 (estimate)

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