1st Internship of Joseph van Dam4th Internship of Jacob Coster1st Internship of Levie van Amerongen1st Internship of Andries Helsloot1st Internship of Luis Mathyse2nd Internship of Louis de Leeuwe2nd Internship of Simon Mathyse2nd Internship of Gerard Liscaljet1st Internship of Everhardus J.J. Pouw1st Internship of Reinier Cornelis Joseph Pouw1st Internship of Louis Sluijs1st Internship of Jesaia Rootveldt1st Internship of Willem Stibbe1st Internship of Machiel Cohen4th Internship of Jan F.W. Westerheijden5e Internship of Jan F.W. Westerheijden1st Internship of Willem Vorsänger1st Internship of Benjamin van Moppes1st Internship of Hendrik J. Augustin1st Internship of Sally Gobits1st Internship of Willem Prins3th Internship of Emanuel Boas5e Internship of Emanuel Boas1st Internship of Dorus Abraham2nd Internship of Dorus Abraham