Going through some old Buffalo nics, I found this...is the one on the right a type 1? I included the other one as a worn comparison.
If it's Type 1 everyone knows it's 1913. There's no reason to mess with it. You'd only decrease any value.
Leave it as is please. It’s identified as a type 1 because of the mound so no need to restore the date, which would lower its value.