The firm of Van Keulen was founded around 1678 by Johannes van Keulen (1654-1715) and in 1680 he published the 'Zee Atlas'. The multi volume 'Zee Fakkel' followed soon after. On his 50th birthday he left the management of the firm to his talented son Gerard (1678-1726). This chart features the Adriatic Sea with Venice in the upper left. It extends to Corfu in the lower right and bears a large inset lower left of this island. Top right are two smaller insets of I. Pachu (Paxoi & Andipaxoi) and the mouth of the River Po. This example is from the third part of 'De Nieuwe Groote Lichtende Zee-Fakkel' dated 1724 which covered the Mediterranean Sea. De Vries, Schilder etc. 'The Van Keulen Cartography Amsterdam 1680-1885', pp. 44 & 202-5; Koeman IV p. 383 no. 110 st. 3; Koeman 'The Sea on Paper' p. 37-8 no. 13; Zacharakis, C. 1182.