"Scott 6" 1sh orange yellow Express ReprintHere is a close-up of the "Type IV" reprint.
Upper right serif of "M" bends down, as does your example. That concerns me, as Type II is not described with that serif characteristic.
I also think the retouch on the line above the "X" on your stamp is also consistent with Type IV reprint.
On the other hand, I don't see an obvious "dot" on the curved line below the center of the "M" with your example, which is diagnostic of Type IV.