Gruen World Time-Teller
The Gruen Watch Company, pre-1983
This is a sweet little blue & yellow volvelle that will tell you what time it is in Cairo, Nome, and Wake Island all with a simple spin of the dial. The text, although not handwritten, is nicely laid out, and the radiating arrows make it feel like a drawing of the sun.
I like that night is shaded blue and day yellow, that midnight and noon are without the AM or PM that everyone seems to incorrectly add these days, and that they’re circled so you can spot them easily. A great little wheel!
It doesn’t have a date on it, unfortunately, but it must be pre-1983, when Alaska consolidated all of its time zones except the Aleutian Islands, since Juneau and Nome are listed at 3 hours apart, (as they were when I was a kid). Gruen is also extolled as the “official timepiece of Pan American World Airways,” on the back, but Pan Am didn’t dissolve until 1991, so that doesn’t narrow it down any further. I wonder if Pan Am ever handed these out on flights?