Celestion Ruby Alnico 12

Hello,I'm selling my Celestion Ruby Alnico 12 speaker.It came with an amp I bought and I switched it for a Jensen.It sounds great,but I like the Jensen sound a little better.Its basically in new condition.I'm not really sure what year it was made ,so I just guessed.If anyone knows how to date it,I would greatly appreciate it if you would let me know. Buyer to pay shipping.I'm in the Nashville ,Tn area.Thanks for looking.