M 201

Yale has:

[Braun, Georg] fl.1593-1616. Civitates orbis terrarum ... [Coloniae Agrippinae, sumptibus auctorum, 1612]-18. 6v. Titles of volumes vary.

I found in vol. 1 of the above set, following the preface, a letter of Hittorpius (Melchior Hittorp) to his friend Georg Braun commend-ing the work.

The British Museum lists several eds; also LC.

For dating of JB's paper: he was seeing the Cosways often 1785-1791.