1.
Introduction to the Pieter Teyler van der Hulst file
2.
3.
Bank Receipt, March 9, 1925
Letter from R.B. LeCocq to B. de Jonge, August 18, 1925
Letter from B. de Jonge to R.B. LeCocq, September 18, 1925
Letter from R.B. LeCocq to B. de Jonge, July 31, 1925
Letter from Mrs. P. Larsen to R.B. LeCocq, July 31, 1955