from the pics, looks like 4 large dates. The 7 would be in a straight line with the 1,9, & 0 on a small date. The top of the 7 is below the 1, 9, & 0 on the large date.
Great link PBK
Had to pull out my Lincoln book to make sure mine was good. The pictures really help, mine is good, I wish I had
a camera that could take pictures that close.
Here is 3 of my 1970 S coins .. i cant see if they are big or small Date .. even after seeing the page that PBK posted.. Please help .. i think nr 2 and 3 are small date but not sure