I am trying to research Sile NY Importation Dates, Differeces, & other info. for Norinco 56s-1 underfolders.
What? Serial # "1MSxxxxxx" vs. "xxxxxx"
I believe the "MS" of the first three Serial #s stand for "Min Shan" Factory. My rifle has the Triangle with the "66" denoting the Factory before the actual serial # also.