why are there so few with ribbons and secondly I don´t think the all red ribon is wrong on many of these medals. My guess are that the are for privates and the ones with yellow stripes are for officers. They seems to be made of better metal as well.
EDIT:
Northwest China Liberation Medal, issued by Military and political Committee of northwest China, 1950
EDIT:
Northwest China Liberation Medal, issued by Military and political Committee of northwest China, 1950
sovvisor












