Age, make any information please

I know nothing about these ornaments other than I have had them for over 30 years. As a teenager I used to purchase a small live tree to put in my bedroom so I could put these ornaments on it. Prior to that my mother owned them. I have 20 intact and one broken one. As you can see they are starting to fade. I put in the picture of the broken one so you could see how the hook was in there. The inside part feels like layers of soft paper over the wire. I can not see any marks on them and as far as I know they are in their original state. Please help me to identify these beautiful blue ornaments. Is there any value in them? Thanks for looking. I hope everyone had a beautiful and Merry Christmas!