Pieter Otto van der Chijs

At the age of nine became interested in coins when he studied the ones his parents donated to the poor of Delft each week.

He wrote an essay on the art of collecting old coins in 1829 and in 1831 he became a member of the Batavian Society for Experimental Philosophy.

[1] In 1833 he started the coin magazine "Tijdschrift voor algemeene munt- en penningkunde".

[3] In 1835 he was appointed director with the honorary title of "Professor Extraordinarius" of the coin cabinet Penningkabinet der Hoogeschool in Leiden.

The Teylers Second Society announced a prize in 1841 for 'a compilation of coins under former Dutch dukes, counts, lords and cities, from the earliest times up to 1576'.