I have a couple of these around and was just wondering what they are worth. they are not the silver dcam's but they are PR69DCAM. I have been having a hard time trying to find the value online.
Numismedia shows a Fair Market Value for this coin at $18.75 in PR69DCAM. http://www.numismedia.com/fmv/pricesms/kenhlv/prices61.shtml PCGS Price Guide shows $21 http://www.pcgs.com/Prices/PriceGuideDetail.aspx?MS=4&PR=1&SP=1&c=125&title=Kennedy+Half+Dollar Hope those two sites help you out now (and in the future.)
You can get them on eBay and other places for around $15 - 20 for the newer years. If you have years 1972 and older, they are worth a lot more money in this grade. For instance, 1969-s is worth $150-200.
Oh I'm paying attention. I just wanted to add an anecdote. I love Kennedy halves, and the '70 is an uncommon one. Just trying to add to the discussion, that's all.
Also if they are all later you will most likely get between 8-15 dollars usually no more for ones like the one in the image !!