1887 seated liberty dime. in that condition s or not about 10 to 15 bucks maybe. still you have it and its 122 years old and thats cool. nice coin.
Yes it is indeed the "Seated Liberty" dime. Liberty sitting on a rock, wearing a dress and holding a staff with a liberty cap on top. All Seated Liberty dimes contain 90 percent silver and 10 percent copper, and are 17.9 millimeters (0.705 inch) in diameter.
My avatar is an 1864-S in a higher grade. If you get interested in this series, check out: http://www.seateddimevarieties.com/ That's Gerry Fortin's Web book, an invaluable resource for collectors of the series.