old weaver v. new weavers
The weaver name has been around the block. There are vintage uSA made weavers, early import weavers, and current import weavers. And maybe a few I don't know about.
If you have a vintage USA weaver, you might want to check w/ the folks at Ironsight, Inc, in OK. Not warranty work, but they can repair and rebuild (I think) some older
Weavers.