A selected kind of weighing instrument designed for precisely measuring the load of letters and small packages supposed for airmail service, generally produced by the Triner Scale & Manufacturing Firm. These devices have been prevalent in the course of the mid-Twentieth century when airmail was a premium and sometimes pricey supply choice, requiring exact postage calculation to keep away from surcharges or rejection.
These devices performed a vital position in facilitating environment friendly and correct mail processing. Their use ensured that senders utilized the proper postage for expedited supply, thereby stopping delays and extra charges. The utilization of such gadgets mirrored the rising significance of speedy communication and the increasing airmail community, contributing considerably to international commerce and private correspondence.
