I found this Cross Century BP in the wild, the unusual thing was the ball clip. I have attached the photos. Is this pen genuine or valuable?

The pen has the following inscription :
AT Cross USA
Century 1946-1996
12K Gold Filled- 50th Anniversary









Thanks in advance,
Hari

It's genuine and collectable. I bought two for $50 a few years ago. They are the Anniversary edition and the ball clip was on the the first Classic Century pens. Check out www.cross.com for the modern Cross Signet ballpoints and note the ball clip. Hang onto that Century you have!