Cal Bell $1s - differences in chips - cleaned but not oiled

differences in barrels
on left are most worn and will fit 21 to a barrel in a 66.7 mm rack (mix of lighter and darker blue)
in the middle is the 'lighter' blue shade and only fit 20 to a barrel in a 66.7 mm rack
on the right is the 'darker' blue shade and only fit 20 to a barrel in a 66.7 mm rack