"Proof of payment for income tax, for staff members of PTTS for the month October 1959 for the amount of $ 500 [13 Nov 1959]"

Stencilled form filled in with typewriter. Signed by the director, Ir/ Nio Tjoe Hauw and an official of the post office Singkep. There is also a seal impression of Perusahaan Pertambangan Timah Singkep (P.P.T.S.) in blue and of the post office in black ink.