Kampert & Helm - biographical data

Name: Kampert & Helm
Name: Kampert Sr, Hendrik Willem
Name: Helm, Jan Frederik
Name: Kampert-Meijer, A.
Name: Kampert Jr, Hendrik Willem
Name: Kampert, Alexander Hendrik
Name: Oostveen, Johan Heinrich van
Name: Oostveen, Jacob van
Name: Oostveen, Dirk van
Name: Oostveen, Alexander Hendrik van
address: Amsterdam
Period: 1872-1949