The “S” on both nickels appear to be below the bottom edge of the window on Monticello. However, the MM on the left coin looks significantly larger than the “S” MM on the right coin. Opinions? TIA
The large S has that giant triangular serif on the bottom left part of the S. There is an excellent thread here on that subject with great photos and posts. https://www.cointalk.com/threads/variety-1941-s-large-s-jefferson-nickel-fs-501.213511/
The position of the S is also a Pick up. The Op's coin is not a large S. The bottom of the large S should be considerably below the lower window level. I believe @Lehigh96 has a thread on this.