On an offline computer, I used a copy of bitaddress.org to enter a passphrase of 12 words and the private key and public key were displayed.   I printed that offline, and keep the info safe until now.  Maybe I'm not remembering clearly though, as I went bitaddress.org now and I see nowhere to do what I just said I did!  But I'm confident I have the public and private key.  Just trying to move the coins safely to coinbase.