This is a new addition to my North Borneo collection, a Kudat airmail cover 1930. The cover was sent from Kudat to Sandakan on the 5th June 1930. It arrived Sandakan on the next day, 6 June 1930 with an arrival postmark on the reverse (not shown). The cover is franked with 13 pictorial stamps of 1925-1928 issue (Perf. 12½) from 1cent to 25 cents. These are tied with the airmail postmarks (5.2 cm x 2.2 cm). The top left corner of the cover is inscribed "Per Air Mail", with the Kudat cicular postmark below it. More on North Borneo airmail postmark and covers here. More on North Borneo RAF Airmail 1930.