Help! What fitting is this???

[ellesworth]

Hi, wondering if anyone can help, I've been given a Centon AF lens 70-210mm but unsure of the fitment. Have taken a quick photo, have tried looking but I'm stumped. Anyone help?

 

[480sparky42 42]

Nikon F.

 

[KmH]

Yep. Nikon F-mount.

 

[480sparky42 42]

And appears to be at least an AI version.

 

[snowbear119 50]

Looks like there are electro. contacts on it, as well.