compiled by J.M. van Hardeveld

Glass slides, presumably used in the compilation of the book "Ars Sacra".

Architecture Weekly "Architectura," January 4, 1936.
(herein an article on the Klein seminarie in Apeldoorn)

"Various works" Loose-leaf photographic work of early and later works.

Photographs of his work.
24 envelopes.

Diplomas and examination papers,
1891-1952.

Documentation on J.M. van Hardeveld.