Rear axle housing ID

I got an axle housing at a swap meet. It has measurements that make it a Nova rear and it looks like an 8.5" 10 bolt. I can't find the numbers to match up on the Nova resource page, so I thought I would see if someone here can help.

Here are the numbers:
7 FC 0 259 on the passenger side axle tube
555771 on the center housing with an F and 254

Thanks for any help!