Music Man amp did Randy California use?

I have here three concert pics of Randy California (Spirit) from 1978. The pics are not very clear but if you enlarge you can see a little bit more.http://home.arcor.de/nhz6/diverse/concer t5.jpghttp://home.arcor.de/nhz6/diverse/concer t6.jpghttp://home.arcor.de/nhz6/diverse/spirit 02.jpg
In the background you can see his rig with a unknown Randall amp on top followed by a Music Man or Fender amp.
First i was thinking it could be a Fender Dual Showman or a Fender Tremolux. But a friend thinks it could be a Music Man head because of the logo.
Well, i have tried google to find pictures of old Mssic Man heads but they are very rare. So i don�t know.
Any ideas?

Looks to be a 130 reverb head. Back then, everything had to be loud and its a reverb due to the size(tall). Mike.

Thanks, can you give me a link to an old 130? I tried google but null result, only newer models.

Sorry i mean a picture link!

Looky here;;;;;;;;887.html?1112680965

Thanks alot.