Assistance With Switzerland Type A20 Vs A21

I do not see where there is a type A21, small numerals, for a 30¢ value in Scott. It measures 11 1/2 X 12 perfs and is white paper which places it as 1901-1903 plus the cancel is 1903. All of the rest of the stamps that I have in that A20-A21 series with large numerals extend into the oval and have more shading in the triangles bottom left and right. I am certainly missing something but don't know what.
Thanks for the assistance.

Maybe your other stamps are later printings.

It is a 20A ,here is my copy .

Thanks for the followup and picture. Must have something to do with the font size for the 3s and 0s. I noticed that your 3¢ above your picture doesn't touch the oval either.
Thanks again.

The numeral size only applies to the 25 and 40 centimes.

Wheelman, this series ( Stehende Helvetia ) occupies 80 pages (!) in my Zumstein

Peter