postal note

plural postal notes

1. historicalA note of postal currency.

   Since no two things are alike... there must be a difference between two postal notes.

   1862 December 14, The New York Times, page 3

2. AustraliaNew ZealandSynonym of postal order.

   In 1893 an inland and intercolonial parcels post was established and the postal-note system introduced [to New South Wales].

   1926, Australian Encyclopedia, volume II, page 318

   Synonyms: postal order

3. UShistoricalA fixed-sum postal order issued by the USPS between 1945 and 1951.