US 1934 National Stamp Exhibition ; Byrd Antartic Expedition II 3c. Imperf. cott. 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
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
Source: en.wikipedia.org/wiki/Van_der_Grinten_projection