Vintage Levis Crop Jacket Denim Riveted White Tab Label Light Blue Women's Small

There are things I do and don't know about this jacket so please read carefully, review photos, ask for more pictures if you would like, and don't hesitate to reach out if you know about this jacket as I found it hard to find info on it. What I do know: This is a women's size small Levi Strauss & Co cropped jacket. I am a size 0/2 and it fits me well, though I think a size 4 would fit it as well. It has rivets throughout the jacket and zips in the front and on the back it has a cinched waist. It is lightweight and blue. It has a very soft denim feel, not like jeans. None of the labels state the material. I purchased it from a Catholic thrift store in rural Central Oregon where the items were all antiques or vintage. The label is white. There is a minor stain on the back (see pic) and I don't know if it is sun damaged or made to look that way. It doesn't smell funky and I see no tears. What I don't know: The tab is white with nothing on it except the "R". My research shows this was done in the 60s and 70s. I am not an expert so please look at the photos and determine for yourself if this jacket is truly vintage.