At Gan in 1958 we had no Met men or Women, just an Met Assistant who took the daily observations and measured the upper winds with a balloon and theodolite as seen here. The results were sent to the weather centre at RAF Katunayake (Sri Lanka) who issued the relevant forecasts.
One of the Met Assistants was a bit of a wag and created a basic and early version of the "Weather Stone" forecasts for airman - which was on paper and pinned up in Gan's primitive 1958 ATC.
I don't have a photo of the Gan version, but you can buy your own "Weather Stone" forecaster similar the the one above from the South American River place.