1925H or 1925KN

How can I tell if my tenth of a penny B W Africa 1925 is H or KN? Please excuse my ignorance.

 There is a small mintmark somewhere on the coin. The letter H is for Heaton, and KN is for King's Norton - both in Birmingham, England. Same as happened in 1918 and 1919 on UK pennies.
 I found this 1925KN and it is on obverse just below central hole ...
http://www.ebay.co.uk/itm/British-West-Africa-1925-KN-1-10-Penny-Extremely-Fine-/390878555163?pt=US_World_Coins&hash=item5b022d6c1b
 and I amended the page as well ...
https://en.numista.com/catalogue/pieces10697.html

 Welcome to the site also.  

Hello.
http://monnaiesetvarietes.zxq.net/FICHES/Afrique%20de%20l'est/AFRIQUE%20DE%20L.pdf
Michel

Verweis : ZacUKThere is a small mintmark somewhere on the coin. The letter H is for Heaton, and KN is for King's Norton - both in Birmingham, England. Same as happened in 1918 and 1919 on UK pennies.
 I found this 1925KN and it is on obverse just below central hole ...
http://www.ebay.co.uk/itm/British-West-Africa-1925-KN-1-10-Penny-Extremely-Fine-/390878555163?pt=US_World_Coins&hash=item5b022d6c1b
 and I amended the page as well ...
https://en.numista.com/catalogue/pieces10697.html

 Welcome to the site also.  

Thanks for your help.