This is a beautifully engraved map of Scotland and the Hebrides with a moire patterned sea and strong topographical features in the interior. This is one of three maps of Scotland that appeared in the Mercator Atlas. It was compiled from Mercator's landmark map of the British Isles  with some corrections. Mercator's outline of Scotland remained the standard until the Robert Gordon map was published by Blaeu in 1654. French text on verso, published in either Gerardi Mercatoris - L'Atlas ou Meditations Cosmographuqies... (1609) or Gerardi Mercatoris - Atlas sive Cosmographicae (1619).
References: Van der Krogt (Vol. I) #5800:1A.1.
A fine impression on a sheet with a coat of arms watermark. There are archivally repaired centerfold separations in the top and bottom blank margins.