When we got home on friday a package had been left on the doorstep... from Phil aka Cat-in-the-hat, a friend from Long Island, NY who was on a buisness trip and we went caching for a day.In the package were 2 lanyards from USAF -United States Air Force, I'm in the belgian air force), that's going to produce some envious looks :-) and one extra-ordinary geocoin.
Not only is it a large coin, but ... well... I need a manual.
Have a look at the picture.
What a surprise :-) Thanks Phil

Found the manual. It's a nighttime clock, a tool used by marinners a long long time ago! Amazing!
On that site you can find more of those old, navigation tools but then in smaller size. The forerunners of the GPS.
