H
aving been so segregated the forms were then photographed in miniature by a girl sitting at what
looked like a flat-topped metal desk. In the top of the desk was a slit, just wide enough to
accept a single form. As each form was inserted into the slit, it automatically operated a light
switch and was illuminated for a fraction of a second, long enough to be photographed by a 16 mm
camera situated below the desk. The resulting film, 100 feet long and 16 millimetres wide,
contained a continuous succession of 1,700 airgraph photographs and, with the metal container
into which it was coiled, weighed 5½ ounces (154g.). These messages, if sent by ordinary letter
post would have weighed 50lbs (22.5kg.). The film of reduced airgraphs was taken by plane to
its destination where the process was reversed and the film projected onto a strip of moving
sensitized paper resulting in a series of positive prints approximately one quarter the size of
the original. The strip was then cut and each airgraph print inserted into an envelope by hand
or machine ready for delivery to the addressee.
© Marfleet Family History 2000 |
||
| Airgraphs - Last Updated |
||
| This page contains links to other web-sites. If you experience problems with an onward link, please e-mail me with details so that the problem can be rectified. Thank you. | ||