This is a meticulously detailed reproduction of the original map

This Map Comes in Sizes:
11"x12", 16"x17 and 23"x24.5"

All maps are made in the USA 

Mercator explained the source for his cartography in a 1577 letter to John Dee, an English mathematician and astrologer:
In the midst of the four countries is a Whirl-pool . . . into which there empty these four indrawing Seas which divide the North.
And the water rushes round and descends into the earth just as if one were pouring it through a filter funnel.
It is four degrees wide on every side of the Pole, that is to say eight degrees altogether.
Except that right under the Pole there lies a bare rock in the midst of the Sea. 
Its circumference is almost 33 French miles, and it is all of magnetic stone. . ..
This is word for word everything that I copied out of this author years ago. [E. G. R. Taylor, "A Letter Dated 1577 from Mercator to John Dee," in Imago Mundi 13 (1956), p.60