Bravo! Excellent demo! This type of hand-held heliograph (or signal mirror) was developed in England in 1942 for military survival kits - I found the RAF test reports in the British National Archives. You can see a photo of an original WWII example by doing a Google search for the phrase: "Signal Mirror British Dinghy".
Bravo! Excellent demo! This type of hand-held heliograph (or signal mirror) was developed in England in 1942 for military survival kits - I found the RAF test reports in the British National Archives. You can see a photo of an original WWII example by doing a Google search for the phrase: "Signal Mirror British Dinghy".
rafowell 8 months ago
Thats reaaallly cool. I love your shop so much ;) I'm sure if more people new about it, it would have more customers than it could handle :P
n33wom 8 months ago