Estimated grade. Sold by David Akers Numsimatics, May '98.
David Hall: The 1917-S Type 2 Standing Liberty quarter is a virtual twin to the 1917-D Type 2 in terms of mintage and rarity in all grades. It is scarce in ciculated grades and very scarce in mint satate. Full Head Gems are rare, but not nearly as rare as the 1918-S, 1919-S and 1920-S.