This master salt is extremely rare.  Master salts were in use during the early 1800s.  At that time, salt was a valuable commodity and the form that master salts took reflected that.  They are always wide and squat with a wide foot so they wouldn’t tip over and spill.  This one has 10brown, black and white cats eye decorations around the side on a wide grey band.  Above and below this band are wide black bands for accent.   The master salt is perfectly formed with a slight flare at the rim that accents the delicate shape of this master salt.  Measuring 3” across the rim by 2” high, this is in original mint condition with absolutely no damage or repairs.  These are hard to find pieces of mocha ware and are highly sought after by advanced collectors.