1.
Introduction to the Pieter Teyler van der Hulst file
2.
3.
Letter from R.B. LeCocq to J. Brinks, January 3, 1925
Bank Receipt, March 9, 1925
Letter from R.B. LeCocq to B. de Jonge, July 31, 1925
Letter from R.B. LeCocq to B. de Jonge, August 18, 1925