Acquired in September 2012. I guess it dates from the 1980s'
Form quite square, closed (61 X 63 cm) from afar it looks like a kind 412 1960, 2 HP being diagonal handles on the sides.
I had obviously many cabs 112 212 and 412 ...
Ultimately, what I blame Marshall is the G12T 75, its very medium-vintage. I put 2 Celestion "Vintage 30" 16 ohms in parallel (8 ohms total so) that sound just not vintage, but are heavier, more powerful performance and more accurate in the bass and treble.
And then, even with a head 15 W, it sends big sound ... and with 50 W lamps tt, we talk about it! I put 8/10 with G12T75, and 9/10 with my upgrade.