Here is the detail of the coin from Saran Singh Book:
Obverse: Within a dotted circle in Jawi "Kerajaan Terengganu 1325" (State of Terengganu 1325A.H=1907). The Initials in jawi in the border "S*Z*A*" of Sultan Zainal Abidin separeted by stars.
Reverse: The figure "1" flanked by a star on each side and enclosed within a diamond frame, all within a dotted circle. A wreath of leaves in the border. The star and diamond frame were new additions to differentiate from the earlier similar issue.
Weight: 6.47 grammes. (This item weight around 5.54 gram).
Diameter: 29 mm.
According to Saran Singh Book, the above one cent (1920) tin coins is the only official issue authorised by the British Government of the Straits Settlements. It was equivalent to the official one cent copper coinage from its date of issue in September 1920 until August 1921 when it was withdrawn. It was reissued in March 1924 at the rate of 4 Terengganu Cents being equal to 3 copper cents of the Straits Settlements until demonetised on21st March 1934.
I buy this coin from this uncle in Seremban Flea Market. I am not accusing him of selling fake item. He maybe don't know about it since he is telling me that this coin is minted in 1325. I remember that this coin is hard to find (even a fake coins) and buy it from him. He tell me that he still got some of this Terengganu coins, you can go try make a visit to Pasar Karat Seremban and see if you can struck any luck.
Source: The Encyclopedia of Malaysia Singapore and Brunei 1400-1967 by Saran Singh.