United States 1961/1961 - McDonald's account statement

Explanatory Note – McDonald Territory Stamps (USA)
These are private service stamps issued for the McDonald Territory, an isolated territory of the
United States (Alaska), at the beginning of the 20th century.
These stamps were used to pay for the private transport of the mail from the local territorial office.
to the nearest official U.S. post office, the USPS postage being
then added.
They belong to the category of Private Dispatch / Local Stamps, not issued by the US Post.
Office but historically recognized.
The specimens presented are 2-cent coins, with several color variants, in mint condition.
with the original eraser, showing traces of old hinges