Pieces 1502 wrong size

https://en.numista.com/catalogue/pieces1502.html

All 50 Öre coins from 1906 to 1991 have, on this site, the diameter of 22mm
 but this coin is listed as 23mm. I have one and think it should be the same.
This is KM#837 and the others are KM#771 788 796 817 825 855
It is locked so I cannot amend it myself.

Thanks !

done