An email circulated years ago with all the air defense listening devices pre-radar. I think they were British.
Bill Clinton's Sexophones?
I remember seeing the top photo with a caption and I think I read about them in a book on WWII history. The ones in the top photo were Japanese to the best of my recollection.
Thought they looked like a musical instrument from a Dr. Seuss book... <grin>
We call them war tubas. The tip is from japan. These were used for locating aircraft in the days just before radar. Some were used in WW1 as well.
http://en.wikipedia.org/wiki/Acoustic_location
I thought the same thing as Warren.
https://answers.yahoo.com/question/index?qid=20091201000906AAfd5iU
Nobody cares that they used Model T wheels?
I thought so! They last pic looks a bit like 21" balloon tire wheels. The first 2 pics look like clinchers. But I defer to those better at identifying T parts!
I do find it odd that the Japanese used T wheels.Would they have ordered them from a US supplyer? I must admit this is the first time I ever saw 1 of these devices. Thanks Ricks for posting.