Found:


Sleepboot Schoonhoven

Henricus Jacobus Tollens, 1906, photograph, RP-F-2009-14-39

Werkplaats met de Vulcain

Henricus Jacobus Tollens, 1907, photograph, RP-F-2009-14-37

Bakkenzuiger Sliedrecht I

Henricus Jacobus Tollens, 1906, photograph, RP-F-2009-14-40

Baggermolen Zuidholland

Henricus Jacobus Tollens, 1906, photograph, RP-F-2009-14-41

Hopperzuiger Amsterdam IV

Henricus Jacobus Tollens, 1907, photograph, RP-F-2009-14-38

Bakkenzuiger Sliedrecht III

Henricus Jacobus Tollens, 1906, photograph, RP-F-2009-14-42

Baggermolen Port Said

Henricus Jacobus Tollens, 1907, photograph, RP-F-2009-14-43