I couldn't find any amount of flaws to allow anything below a 67. I never grade these things higher than a 65. It is a beauty
This has great luster and is a rather pretty coin to boot. Minimal nicks particularly in hand and a nice strike. Yes, NGC gave it a 67 and I feel it deserves that grade.
Guess The Grade Very Nice '55 S Cent, looks like a MS66. The Reverse has a few nicks on the "o" otherwise I'd give it a MS67.