This is the classic Marshall 1960A Slant cabinet, built during the 1990's, which is known for it's solid build quality.
It was previously used by RJ Ronquillo with his Marshall amps for YouTube videos and other sessions. The mono/stereo switch on the back has been disabled, and one of the input jacks is covered with gaffer tape, leaving a single 16-ohm input. There are a few small nicks in the tolex, but overall, it still looks great.