Two Arm Semaphore + Morse Code 1914 Pocket Signal Disk early alphabet sampler made of individually carved pieces

made of individually carved pieces that interlock just so

I couldn't resist

A few of them have numbers on reverse

the stone shows white when scratched

visible only from the backside

Two Arm Semaphore + Morse Code 1914 Pocket Signal Disk early alphabet sampler made of individually carved piecesI've had a few different versions of "Pocket Signal Disks" along the lines of this one, and will always grab them when I find them as who knows when knowing morse code and semaphore might come in handy??? (Plus I love the design and the slogan "be prepared" and it is fun to turn the dial.) This one dates to WWI and features two arm semaphore and gesture signals on one side, and international morse code on the other. A cool thing, and if not to be used