VMs: Possible optical device

["Anders, Claus" <Claus.Anders@xxxxxxxxxxxxx>]

Title: Nachricht

Hi All,

just reading the "barrel" emails, I imagined an optical device made out of 8 sides with engraved visual reading aids (keys).

This device (made of glass or other translucent stuff like feldspath (sp?)) will be put onto the "page" and you can cleary read the text with a sort of adding the VMS text and the keys on the device.Each gallow will tell the reader, which side of the device is to used.

The "keys" will be engraved in the device (with acid or knife) and be only visible when be seen on the bottom of the device.

The opposite side of the keyy must be clear of course.

As we have 8 gallows, the device can be horitzontal turned giving 8 possiblities.

With such a device, the VMS can be read very easily, encryption should take longer, but with practise, it can be done quite fast.

Question: is such a device known from the time period of VMS's presumed creation?

An additional advantage: you can show the book, but nobody can read it with buying the device.

 

Just a thought

Claus