Thomas Edison - Handwritten & Signed Engineering Note [JSA]

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Authentic handwritten and signed Thomas Edison note discussing structural support and water depth engineering concepts. Written in pencil on aged paper, this historic document offers a fascinating glimpse into Edison’s real-world problem solving and engineering thought process.

The note appears to reference water pressure, support bracing, and recommended depth below the water line, likely relating to an industrial or infrastructure project from Edison’s era. Pieces like this are especially desirable because they show Edison not just as an inventor, but as a hands-on engineer actively working through technical challenges.

The document is signed by Thomas Edison and has been professionally mounted to an 8x10 display card for safe storage, preservation, and presentation. The larger format makes it ideal for framing and displaying in a collection, office, or studio.

Condition:

• Original vintage handwritten note

• Pencil writing on aged paper

• Mounted to an 8x10 backing/display card

• Wear consistent with age, including toning, folds, and edge wear

• Please review photos carefully for condition details

• JSA Authenticated. LOA included.

An outstanding historical artifact from one of the most influential inventors in American history.

For inquiries & questions please contact us here or DM us on Instagram @iconorigin