Letter seeking opinion of forthcoming English-Sankrit-Hindi dictionary, 1951 Folio 1 Unit ID: 46 Date: 1951
Letter submitting paper for comment and other data on Brahmanical matters in Siam, 1967 Folio 1 Unit ID: 182 Date: 1967
Letter to Coedes and outline of Book Nhat-tan Phuong-luoc (un programme de reformes), 1936 Folio 3 Unit ID: 92 Date: 1936