Saudi Arabia 1 Qirsh 1356 inconsistency

The article
https://en.numista.com/catalogue/pieces11350.html

in comments presents:
KM#21.1 was minted in United States Mint, Philadelphia
KM#21.2 was minted in Heaton, Birmingham

Standard Catalog of World Coins 1901-2000, ed. 43 2016 p.1936 gives for KM#21.2
Note. Struck in 1947 (AH1366-67) in Philadelphia

How this contradiction can be solved?

Cita: "cyprusalexander"​​How this contradiction can be solved?
​​

​As usual, simply by sending a change request.

I didn't see the heaton mint info in krause, so it might have come from Schon?
Anyway, if Krause is right, then KM#19 and 20 should be fixed as well.

So right now we consider it as mistake(s) in Numista.

Yes.
I've sent change requests for the 3 coins. thanks

Cita: "AmerSalmeh"​Yes.
​I've sent change requests for the 3 coins. thanks

​became a referee and validated them. Issue solved.