Kingstonstamper,
It looks like a "wide" rotary coil to me. The 19.5mm width is the important part. It measuring at 22.25mm height is insignificant. Listed dimensions aren't exact. What is important is that a horizontal printing needs to be 19.5mm or wider. Vertical printings need to be 22.5mm or taller.
Some flat plate printings also measure as large as the rotary minimums. In such a situation, look for fine line detail and an absence of ink offset on the obverse. The scan of it in your other thread shows that has the line detail of a rotary printing.
Measuring to the needed level of accuracy is difficult. Utilizing a template is a nearly foolproof method:
https://www.stampcommunity.org/topi...40718#349013