Effective from October 1, 1945, ordinary letters posted for local delivery and for domestic transmission were both charged $20 per unit of weight . Therefore, all the postage-due stamps previously printed, of which the highest denomination then in stock was only $2, were rendered unsuitable for further use . Arrangements were made with the Central Trust, Chungking for the printing of a new set of postage-due stamps in six denominations by offset process in rose color. The design was changed to the horizontal style. The value in chinese characters is shown in the center as usual and 〝欠資郵票〞(postage-due stamp) appear in a curved panel at the bottom.