Hi Kelly,
Nice to hear someone r also into Malaya & British Borneo collection. In the QEII 1953 series there r $1, $5, $10, $50, $100 possible in normal collection the $1000 and $10000 r a bit out of reach. The 1959 $1 there r 2 printers Thomas DLR and Waterlow & Sons. The waterlow is harder to find in UNC condition hence expensive too. The 1961 $10 buffalo note has 3 different versions small letter prefix "A", Big letter "A" and the most rare is the big "B". I have two catalogues that related to the current market price of these notes. I like to share info and learn more on the history of Malaya, Malaya British Borneo and Malaysia banknote.