The bearer was a British Subject (Citizen of the State of Singapore)
but was not a given a full passport. The real reason is unknown and can only be assumed that new passport booklet was not yet ready as Singapore has just attained it self-government towards the late of 1959. The cost for the certificate was also similar to a full booklet passport: $5.
The passport was endorsed for Hong Kong, Malaya and China. The bearer travelled to China in March and returning two months later in May. He took with him M$1,000 on 16 March and when returned to Singapore, returned for an exchange of M$500 on 11 May, a few days after he arrived.
Despite the use of the name of British Malaya
, Singapore was actually separated from the peninsular in term of governance and immigration control. The only common things that both shared were the currency (Malayan Dollar / M$)
and postal system arrangement.