frame modifications second pic.

[steve750four]

Sorry trying to work out how to get all pics on one post, (any help would be appreciated) this picture shows a bracket on the tail end of the frame on my K2, not sure if it is factory, an add on, or a imported bike. am trying to find out before I start restoring this bike. Regards Steve750four.

[wvhardtail]

Looks like a mount for a police radio box.

[vern401]

It sure looks factory to me.
I would say by looking at your posts that it was probably used and built for law enforcement.