I picked these patches up at an estate sale years ago. They are original probably from the late 50s to early 60 era.
Los Angeles County - Street Racers Jacket patch set, 57 Chevy -- an iconic street racing hot rod. Sold as is. No jacket - just the patch set as pictured.
These old patches were found at an Estate sale removed from their original jacket and as you see them in the photos. They show obvious signs of age and wear such as some yellowing of the background fabric, a bit dirty, a bit of missing blue fringe, a bit of missing embroidery threads here and there, etc. I'm guessing they are from the late 50s to early 60s.