 Data may have been drawn from c.1421 Klosterneuburg "Fridericus" map as well as from Etzlaub's own interviews with travelling merchants.This was a second and improved edition of principally the same map, 1501, 54.5 x 39.7 cm, printed in Nuremberg by "Georg Glogkendon".In 1533, Glogkendon's son Albrecht printed one more (unchanged) edition.