This is just about as good as it gets when we're talking about a museum piece plexi Marshall. This particular head is from the latter half of year 1968. It has a stock slider type bias trimmer, somewhat rare 40+40uF Marcon Chemicon filter caps... and of course the unmistakable tone of a late 60's plexi: rich, punchy and aggressive. The inspection tag is signed (among others) by Rosemary, the one and only. Two rightmost connector pins of the script logo are broken and there's a small scuff in the tolex on the bottom side - something that could be glued back on. Still, even the power tube retainers seem to be original.
This amplifier has been overhauled in October 2013 at Jaska's Music Garage. All electrolytic capacitors were replaced, also all mechanical connections were checked just to be sure.
Specifications
Marshall Amps Info & Schematics
s/n: S/A 10540