Update I have a suggestion that this could be Mansfield Bogarrdt &co type 3. I am handicapped in not having Ivor Moore's book even though I have been talking to the great man himself this weekend at our AGM.
Besides a good partial Sandakan D10 BNBC cancel, we also have "Darby & Co" in pale pinkish red. This was a British shipping and trading company and possibly later on became involved with rubber plantations.
A $2 revenue perfin stamp with the fiscal cancel of (?Lan)d Office showing a partial date of AU(gust) (19)19. And a "used" $1 revenue perfin but the cancellation is not clear.