Mine is a 3 cup version and has "X17" on the bottom so I don't know that 10 is the size. That base is definitely larger than mine. Fill it to just below the safety valve and measure that. Mine is right around 130ml
Just to add another data point mine is the 9 cup version and I can’t fully make out everything on the bottom but there is definitely a “2” so doesn’t seem to be size related. Up until today I had no clue there was anything even on the bottom. Makes me wonder what it refers to.