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I learnt a lot writing this fun fact, and not just in writing the post but in preparing a good image.
All original photographs from the time period are very low quality (100x100px) and in black & white.
To bring the photo up to a standard suitable for Stacker News, I used three tools to help augment the photo:

  1. upscaling using Clipdrop
  2. colourisation using img2go
  3. touch-ups/tweaks using GIMP

Below is a before & after of the edits:
https://m.stacker.news/15468