A letter scale is a weighing scale used for weighing letters in order to determine the correct amount of postage. Until the 1990s most letter scales were mechanical, but today electronic scales are the most common.
en
A letter scale is a weighing scale used for weighing letters in order to determine the correct amount of postage. Until the 1990s most letter scales were mechanical, but today electronic scales are the most common.
[Last update: ]
