A very popular set at the time, this set of 6 spacemen were issued in 6 different colours and came with clear plastic helmet. The helmet has a slight lip on front and back to allow it to fix to spaceman - these are hard to find. The moulding for the metal detector appears to have been poor with frequent examples just having a blob of plastic on the end. Made by Crescent
Interesting that some mouldings appear to not have all the details - as can be seen on this flag