A shout out to @JCro57! Looks close to his: https://www.cointalk.com/threads/is-this-considered-large-for-a-rim-burr.349793/ Sorry for all the pictures. Had a hard time getting the light, focus and angle correct. The last picture shows where the tip of the anomaly (just inside the "9"), has a shape edge. I lightly ran a Q-Tip over the surface to show where the edge caught the cotton fibers.