I bought this gold coin of this Johor Sultan in 2006. It costed me a fortune but I am glad I have it finally ( after a few installments). Bought this from a trader in Malacca. It is quite rare coin and listed as RRRR in Saran Singh's Encyclopedia of The Coins of Malaysia Singapore & Brunei, page 116.
Sultan Haayat Shah ruled the Empire of Johore from 1615-1623 CE. He is from the Malacca royal line.
This is a rare gold coin (kupang )from Sultan Abdullah Haayat Shah ( 1615-1623CE) of Johore Sultanate.
Similar coin was sold for SGD1200 ( USD880) in Lot 189 in the Collectibles Auction Asia (CAA) Auction 5/2015 held on 18 April 2015 at Landmark Village Hotel, Singapore.
Obv: Sultan Abdullah Shah
Rev : Khalifatul Mukminin
Market Price : USD880