* Printed on image: "Collect. Dieulefils--Hanoi"
Scan by NYPL
<a rel="nofollow" class="external free" href="https://digitalcollections.nypl.org/items/c2eadc88-8bde-0d89-e040-e00a1806456b">https://digitalcollections.nypl.org/items/c2eadc88-8bde-0d89-e040-e00a1806456b</a>