Correspondence with Manton Marble
Scan by NYPL
<a rel="nofollow" class="external free" href="https://digitalcollections.nypl.org/items/a5eaf3c5-8f80-9e77-e040-e00a180642b3">https://digitalcollections.nypl.org/items/a5eaf3c5-8f80-9e77-e040-e00a180642b3</a>