Interesting pair of images.
The top images shows the famed island of Murano, in the Lagoon of Venice.
The second image shows the Lido di Venice island and Fort de Malamoco.
Pierre Mortier Biography
Pierre, or Pieter, Mortier (1661-1711) was a Dutch engraver, son of a French refugee. He was born in Leiden. In 1690 he was granted a privilege to publish French maps in Dutch lands. In 1693 he released the first and accompanying volume of the Neptune Francois. The third followed in 1700. His son, Cornelis (1699-1783), would partner with Johannes Covens I, creating one of the most important map publishing companies of the eighteenth century.