ResearchIndex Home U. S. Postal Service. Annual report of the postmaster general , fiscal year 1991.
Most mail is metered or printed.
Figure 2 shows an example of a postage meter indicia. Traditional postage meters must be presented to a branch post office to be loaded with postage. The postage credit is stored in a register sealed in the machine. U. S. Postal Service. Annual report of the postmaster general , fiscal year 1991.