Like in thread What is the value of 20 cents 1875 S and 25 cents 1887 S? 1. 20 cents 1875 S 2. 25 cents 1877 S Thanks
You'll have to be more patient than just a few hours after posting... or try looking at completed ebay auctions and search numismedia.com for the going fair market value given the grade of your coins
OK searously,the 1877-s fairly common date looks around f cleaned. 25-30$ max and it is slightly questionable.looks,from your pictures either corroded at one time or possibly cast. the 20c looks great nice color,a bit light, but still very presentable common date for the series.I would estimate between 80-125$ depending on how you would like to sell it.
Pursuant to guidance provided by A Guide Book of United States Coins 2011, R.S. Yeoman, (c)2010, aka "Red Book": 1875-S, 20 Cent Piece (provided this piece is genuine):"G-4 Good - LIBERTY on shield obliterated. Letters and date legible VG-8 Very Good - One or two letters in LIBERTY barely visible. Other details bold. F-12 Fine - Some letters of LIBERTY possibly visible" Pursuant to this guidance, I estimate this specimen has a grade of VG-8. Letters "T" and "Y" are barely/possibly visible to me. I aver that Red Book guidance is somewhat ambiguous so I defer to the lower grade. At the VG-8 grade, retail pricing is listed at $120.
Pursuant to guidance provided by A Guide Book of United States Coins 2011, R.S. Yeoman, (c)2010, aka "Red Book": 1877-S, Quarter Dollar (provided this piece is genuine):"VG-8 Very Good - Rim fairly defined, at least three letters in LIBERTY evident F-12 Fine - LIBERTY complete, but partly weak VF-20 Very Fine - LIBERTY strong." Pursuant to this guidance, I estimate this specimen has a grade of F-12. Indeed, LIBERTY is complete, but is partly weak and not strong. At the F-12 grade, retail pricing is listed at $35. However, in concurrence with what Mad.Outcast stated, I also believe that this specimen appears to have been cleaned. Thus its pricing is somewhat netted to less than $35.