This is just to share another currency guide book by Willam Shaw and Mohd Kassim Haji Ali which was published in 1971 by Museum Negara. This book briefs and explains the history and development of coins in northern Malaya States as early as in 13th century.
Coins of North Malaya by William Shaw and Mohd Kassim Haji Ali
Ancient gold coins of Kelantan - Kupang
Ancient coins circulated in Northern Malaya States
For coin lover, you might want to understand further on the history and development of early coins in northern Malaya States. This book suit you perfectly to give you better understanding of early coins that you have collected or intend to collect.