Question about a obsolete means of communication?

In the frontiere days of the ‘horse calvry’ they used a heliography (probably misspelled) A system of flashing sunlight with mirrors and using some kind of code.Can anyone enlightem me aboutthis. The web isn’t very helpful in resrarching this.

Top 1 Answers

A few days ago

trawet

Favorite Answer

http://myweb.cableone.net/kd7aoi/

I typed in your one word and a whole slew of sites pooped up this one seed helpful

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Question about a obsolete means of communication?

Question about a obsolete means of communication?

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