What is on this commem?

Hey, i was digging through some more of my gradparents old collection and i found this boxed with a $10 gold piece. I turned it over and it was beautifully toned. Much more blue and red then the picture. Anyways my question is, what is that under the T in LIBERTY. Is it a partial fingerprint? If anyone knows please LMK,

Thanks,
Chase
Thanks,
Chase
0
Comments
The "marks" you are referring to are probably simple toning areas- an area that didn't tone like the rest of the coin, and not damage.
It's a pretty commemorative.
peacockcoins
Ill post a pic of the obverse in a sec, also is there any way i can with a scanner capture the true color of the coin? It has more of a blue outer rim, then redder, then golden