Like you my references make no mention of the coin alignment. The numista entry only shows medal alignment.
There is a book which might answer your question.
Coins and Coinages of the Straits Settlements and British Malaya 1786 to 1951
by Fred Pridmore
published 1968
I dont have a copy and Amazon advertises it at around the £170 mark. Maybe a local library can help?
There is a book which might answer your question.
Coins and Coinages of the Straits Settlements and British Malaya 1786 to 1951
by Fred Pridmore
published 1968
I dont have a copy and Amazon advertises it at around the £170 mark. Maybe a local library can help?



















