The film is great. Not only is
it a fine explanation, it is in color, which would be even
more unusual because it was in 1940 when the UK was at war.
Finding a copy of the film is fortunate because the color
process used is far better suited for making only one copy. It
can make multiple copies, but the generations degrade quickly.
It is likely a very rare film. Regarding the pneumatic tube
systems, Lamson, a major US manufacturer, was located here in
Syracuse. The larger department stores downtown had them and
they were used into the 1990s when the stores closed and were
torn down. No one I am aware of tried or succeeded in saving
any of the systems.
Brenda Gentry, KA2IVY
Thanks for sharing John !Joe ( N1JBQ )
On Wed, Aug 19, 2026 at 14:51 John Lawson via GreenKeys <[email protected]> wrote:
______________________________________________________________
Has astounding detailed working models of the various parts of the system, including neon tubing representing the loop wiring…
https://www.youtube.com/watch?v=Mi2Sx-ZY410
John KB6SCO
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