Finding Aids to Official Records of the Smithsonian Institution Archives
Record Unit 66
Smithsonian Institution. Chief Clerk
Special Communications Received, 1846-1918
These records consist of letters, patents, ideas for inventions, and other papers sent to the Smithsonian Institution, usually with the provision that they be sealed.
This collection is indexed under the following access terms. These are links to collections with related topics, persons or places.
Physical Characteristics of Materials in the Collection
Smithsonian Institution Archives, Record Unit 66, Smithsonian Institution, Chief Clerk, Special Communications Received