Morley mint

Hello,

The british east african 50 pence was made at the morley mint in 1920 (mintmak A).

But what morley is it?

-In Australia
-In England, West Yorkshire
-In England, Durham

Thank you,

Antoine

I've found, it's in yorkshire: http://www.mining-memorabilia.co.uk/A&Btokenarticle.htm