That's the normal ball serif variety. The teardrop shape is on the top and the slightly blocky sefif on the bottom. The inverted S of 1946 is blocky on top and teardrop shaped on the bottom, although a bit fuzzy to see on a later die stage coin.
Even with wear, one of the most distinctive aspects of the knob-S mint mark is the straight cut on the upper curve that gets super narrow at the end of the teardrop. The flared bottom termination with a flat face is joined by a circular curve to the body.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use