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.