Pete, I owe you an apology, with a retraction
...and a modification to my statement about the Fireball viewmaster image.
I chatted with my 84 year old Mum last night about this topic, and she helped jog my memory.
That Fireball XL5 image (that Peter posted) was actually a publicity giveaway when Fireball was on TV.
It was in the form of a 35mm Transparency (Film Slide).
And that I do have (somewhere)...I am hunting for it.
I'll share a pic when I find it!
I believe my Viewmasters and GiveaShow projector stuff stayed in England when I immigrated to Canada in the late 60s.
Only thing I brought with me was my Thunderbirds mini-Record
The Viewmaster reel I had was most likely to do with Supercar.
I also had a Thunderbirds reel later on.
Probably like this:
I also had the Give-a-Show Projector which had Supercar/Fireball/Stingray slides.
Like this: