Marshall SV20C 12" Combo

Marshall 20watt plexi modified to take a 12" Celestion Greenback.
Switched jack at the back so you can connect an external cab in series as well as parallel.
In excellent condition.
Not looking for swaps, thanks.

Lads seem reluctant when they hear it's been modified, so here's my story;
I used to work as a carpenter where my speciality was 2nd fixing, I now work in a company where I fit-out pump stations for Irish Water.
I've modified the Origin20c, the Studio Classic SC20c, and the SV20c to all take a 12" speaker.
Admittedly, the Studio Vintage SV20c was the most difficult of the lot, and I wouldn't recommend tackling it unless you were ultimately confident in your own abilities.
Besides sounding better, you just have a tonne of options with 12" speakers.