Two original coastal profiles: (1) "Landverkenning der Westkust van Borneo

bezuiden Soekadana". Drawing in pen and ink, finished as watercolour, leaf size 9.5 x 45 cm., with title and information in pen (degrees partly corrected in red pen), numbered No. 4 lower right.

With 1 similar coastal profile (Landverkenning der Zuidkust van Karimata, 9.5 x 33.5 cm) by the same artist. (total 2)