A good project?

Phil_aka_Pip

http://www.ebay.co.uk/itm/Marshall-50-Watt-Valve-Amp-Chassis-1973/281673166727?_trksid=p2047675.c100009.m1982&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20140328180637&meid=6f84ee75239d4a5dbbf2e5307231b48c&pid=100009&rk=7&rkt=10&sd=221756604852

jpfamps

That's a Marshall Artist: not the most desirable Marshall.

It looks a bit of a lash up.

The output transformer looks correct, and would be same for any of the early 70's 50W Marshalls and is probably worth (assuming it's working) a couple of hundred quid.

Choke and reverb transformers look correct.

The mains transformer is wrong (and is a total hazard with exposed terminals), and I'm not sure what the transformer on the far right is.

It's work £250 for the parts, but probably not commercially viable restoration project.