On Thursday, this purchase of 4 halves arrived from a roll searcher luckier than I: 1987D,2007P,2007D and 2010D 1987 (both mintmarks) is a big rarity amongst copper-nickel JFK halves: not minted for circulation, only included in uncirculated mint sets. I got that one in trade for a 40% silver half: metal worth $5 or $6, which seems to be the going price for '87 halves. I got the other three for face+postage, regular $. I've been heavily involved with paper currency lately; this is one of my few recent coin purchases. Still missing 1987P,1990P,2008P,2008D,2009P,2009D,2010P,2011P,2011D as well as all proofs besides 1990.
Do you want to fill some more holes for relatively little money? eBay has every date you need, most for a couple bucks. You'll pay a little more for the proofs, but I'm sure you can find what you need here. http://www.ebay.com/sch/i.html?_fro...ennedy+half+dollars&_sacat=See-All-Categories Good Luck!
I did something similar with my Jefferson nickel collection: I got tired of roll searching, and bought the remaining dates from another collector/roll searcher luckier than I (8: 38D,38S,39D,39S,46S,50D,51D and 51S)
As for the silver versions, I have all of the war nickels and all of the silver JFK's except for 1970D
