This used 3rd Power Clean Sink MK II 1X12 Combo is in Excellent condition with minor signs of handling and use.  Looks like new.

FROM 3RD POWER:

Big, open, piano-like cleans with depth, dimension, and headroom. 
This is your foundation tone — articulate, dynamic, and alive under your hands.  Full low-end without flub.  Bell-like top end without harshness. Touch-sensitive response.  Clean that feels as good as it sounds.