I am not familiar with CLAMS which the earlier poster talked about, but it is safe to assume that the created addresses must have appeared on the blockchain at a point on or before 2014 to be eligible for them.
If the OP is digging for CLAMS then the address must have been funded above dust level at a specified block number on May 12, 2014. Each qualifying address received 4.60545574 CLAMS currently priced at $5.78 each. All you need to do to get them is download and install the client and import either your wallet.dat file or the individual private keys. You don't even need to wait for the blockchain to synch before sending them to an exchange to sell.
Edit. Corrected the amount of CLAMS from 4.6 to 4.60545574 after checking.
Thanks for informing us here, he didn't even want to disclose what his real intentions for buying those old addresses anyway that's still an easy $5.