In August
of 2009 a de Forest radio, built for the US military around 1918, was put on
eBay. The receiver was in excellent condition, as it had apparently been
squirreled away for 90 years, and the seller placed a number of photos in the
advertisement.
The photos are of very high quality and show the quality in
construction done during these early years.
I week or so later I went back to eBay but
the receiver was gone. I had intended to get permission to use and give
credit to the seller for his photos.
As usual, click on a photo to see a larger image.