1912 Rule for a US Citizen

I am having trouble understanding the 1912 rule and if it is effective. From what I found, I meet all the requirements but am not sure about this.
My situation is Me, Father, GM, GGF, GGGF. Father born in 1951(so after 1948). GGGF born in Italy in 1872. GGF born in 1904 in U.S.. GGGF naturalized in 1905(so Italian citizen when GGF born). Does anyone know if being naturalized before 1912 will prevent my jure sanguinis citizenship? Thanks!
My situation is Me, Father, GM, GGF, GGGF. Father born in 1951(so after 1948). GGGF born in Italy in 1872. GGF born in 1904 in U.S.. GGGF naturalized in 1905(so Italian citizen when GGF born). Does anyone know if being naturalized before 1912 will prevent my jure sanguinis citizenship? Thanks!