Been meaning to send this for ages, in case it's of use. I know someone put a picture of these on the forum, but I have since found better images. Can't remember where I found the images, sorry [let me know if they're yours and I'll credit them, Woodsy].
The spacemen illustrated here were probably the first space models I had come across, certainly the first space free gifts I had seen, as a youngster. A boy living up the road had them, and I never managed to get any. Perhaps as a result, they continue to fascinate me.
One site says these were released by a company called Charben (in the US?), and also attributes them to Kelloggs. My memory may be poor, but I think they were actually given away by a Nabisco cereal, probably Shreddies, around 1963?
The back of the cereal packet had a lunar landscape on, I think designed to be cut out.
I don't know why one figure lacks hands, but I think the sculptor well anticipated how bulky space suits would be.
It would be good to know more about these figures.
All the best,