Watch List notes:

German East Africa, King George VI, Specimen Proof, 100 Shillings or 5 Pounds, Nairobi, Dated 1st September 1943, S. No. B/9 00000, CANCELLED perforation, (Pick # 31SP), printer's annotations, graded by PMG as 53 About Uncirculated, Extremely Rare.

Note: Colors are brilliant on this highest denomination with all zero serial numbers. "Cancelled" perforation is easily seen from the back.