It is written on thin vellum in four columns CUs.
Generally from to 24 gores and two small segments for the polar regions printed on vellum paper are used for each globe.
Even after the introduction of vellum as the ordinary vehicle for literature papyrus still continued to some extent in use outside Egypt, and was not entirely superseded until a late date.
The earlier wares were yellow, brown and red; then came deep greens and blues, followed by mat glazes and by "vellum" ware (first exhibited in 1904), a lustreless pottery, resembling old parchment, with its decoration painted or modelled or both.
The first method distinguishes between uncial or majuscule, and cursive or minuscule; the second between papyrus, vellum or parchment, and paper (for further details see Manuscript and Palaeography); and the third distinguishes mainly between Gospels, Acts and Epistles (with or without the Apocalypse), New Testaments (the word in this connexion being somewhat broadly interpreted), lectionaries and commentaries.