Perspective cylindrical map projection, truncated at 75° North/South.
Due to its severe inflation near the poles, it is practically unused in cartography. Common usage is to illustrate the construction of cylindrical projections – and to show that the Mercator projection is not constructed perspectively as sometimes claimed.
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Specified in [square brackets]: Actual size of the projection
(minus the black or white background). When marked with [≈], sizes with and without
background are approx. the same.