1918 Letter: Government Harassment of Inventor, Mare Island Navy Yard Experiment For Sale

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

---

1918 Letter: Government Harassment of Inventor, Mare Island Navy Yard Experiment:
$149.00

This 1918 letter is a historical artifact that sheds light on harassment of an inventor. The letter discusses an experiment at Mare Island Navy Yard and the obstacles faced by the inventor. The letter belongs to the category of collectibles and paper ephemera from the early 1900s.

Fascinating papers found amongst a cache of documents belonging to Earl C. Hansen, a California inventor (Vacuphone hearing aid and early wireless radio technology).

This letter is signed by Adams (from other documents not included in this sale, we have learned this is Oliver P Adams), as well as Hansen, sent to Mr Brant (which we know is O F Brant of Title Insurance & Trust Company), discussing an angry altercation with what seems to be a government official.

Cool piece!

Wear commensurate to age, including, possibly, chipping at edges, folds, and other minor issues. You get what you see :)

1918 Letter Discussing Asking Government for Tech Assistant’s Draft Deferral WWI

$99.00

1918 Letter Mystic Workers of the World, Ottawa Illinois A Schoch Supreme Banker

$299.00

Letter 1918 Spanish Influenza "the Flu"

$12.00

April 1918 - King George V Signed Letter to WWI US Soldier - Windsor Castle

$45.00

1918 Studebaker South Bend Indiana Letter Need of Street Sweeper in Wisc. B8S1

$19.95

WWI 1918 Female Letter to Soldier Spanish Flu Liberty Bond My Country Tis Thee

$24.95

Antique 1918 Letter from St Elizabeth’s Convent / St Bonaventure NY - Holy Week

$49.00

1918 Letter: Government Harassment of Inventor, Mare Island Navy Yard Experiment

$149.00