I think in case of these three many award documents were simply given to the recipients not filled in. I can't really explain why, but this is also sometimes the case with 25th Anniversary of Victory Badge.
I think the Afghan medal on a 5 sided suspension is more common than we might think. I purchased (and recently sold) one of these medals that was part of a suspended lot which included a full set of irreproachable service medals for the army (as well as a couple of jubilee medals).
I have also seen a tremendous amount of suspended post-USSR unofficial Russian commemerative medals (50 yrs. atomic energy, 80 yrs. KGB etc.) that occupy that far right position on suspended lots. Perhaps this is because I deal with Transnistrians?.....
I am under the impression that these were issued in USSR, like yours with Soviet stamp, and in Afghanistan proper, with Afghan stamp. I have seen hand written and typed versions for USSR issued but only hand written for Afghan issued. But I have not seen that many.