United Kingdom QEII For Campaign Service Coin/Token/Medal?

Good day,

I have found two of the below while sorting through some old coins which at first glance appeared to be QEII sixpences as they resemble them in size and design on one side. They seem to be silver and coins, but I cannot find any ref to these anywhere. Can anyone shine a light on what these are pls?

Diameter 19mm

Thickness 2mm

Weight 4.2g each

Thanks in advance

 A miniature version of this - with an uncrowned portrait 

https://en.wikipedia.org/wiki/General_Service_Medal_(1962)#:~:text=The%20General%20Service%20Medal%20(1962,Campaign%20service.