I would like the possible grade on this as well? Ive been checking the die varieties and it only points to one coin.
Looks like the typical '88 reverse from here. The '70 looks like the large date (but I like the color)
Your '88 is a RDV-005, not a 006. The 70 S looks to be XF-AU. Worth a cent unless you can provide bigger pics to help determine if it's a variety.
The 1970 S is a large date, as the hook of the 9 is pointing at the mint mark, and the 7 in the date is sitting slightly below the other numbers in the date.