A few days ago
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
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
2
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