Update This is the same as the Madam Joseph fake fixed date cancellation for Brunei but the date recorded for that is 13 JUL (no year).
Another D1 with the just 2 numerals for the year.
We have three D2s in blue with the date 13 NOV 1907. This is one of the "curved" year cancellations. This is a peculiar postmark with another fixed date of 17 NOV 1908. Proud has given this cancellation a possible doubtful status. It has also been described as a reserve date stamp used when other date stamps were not available for what ever reason. It was also probably used for cancelling mint stamps for philatelic purposes.
The hand stamp was made of rubber which probably accounts for the grainy appearance of the cancellation. It would be interesting to know whether subsequent degradation affected the appearance of the postmark like the the NB Papar D1 hand stamp.
A more recent D8 again with part of the year missing.
This is D5 from Temburong with a rating of x 100 which would give a fancy value of £1200. Again, one should pay a lot lot less than this.
Update I am not sure whether I have interpreted Proud's valuation system in the right way. I have read the section in the preface of his book quite a few times and still not fully understood.
This is rather unusual with having both a Brunei and a Singapore postmark. It probably did not reflect paquebot use and was more of an arrival or transit cancellation. A Singapore paquebot cancellation on a Brunei stamp would be extremely rare as the mail normally went through Labuan.