Mandolin model a50 with 5 strings.

I found this photo, which looks like a 5 string mandolin model a50..
Attachment 158476
Attachment 158477
Seems to be a Gibson. Or customized.

It's hard to tell anything for sure. At first glance, my eye wants to recognize it as a gibson, but the longer I look, it could be something else. It may have a pickup added, again it's hard to tell, but if those are knobs I see below the treble side f-hole, they're in the wrong place to be a EM-150. Are you familiar with the band?

I think it's The Craig and Carol Chambers Band.http://www.westernswing.net/?q=node/30/96

My A50 neck tapers towards the Nut, a lot, barely room for 4 strings, but for those used to playing the violin, the tight spacing may work.