The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

All registered stamps issued by United States of America in 2019

The 2019 issuing programme is not available.
  1. Us011.19-80
    Wns Number
    US011.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Echinocereus poselgeri
  2. Us012.19-80
    Wns Number
    US012.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Echinocereus coccineus
  3. Us013.19-80
    Wns Number
    US013.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Pelecyphora aselliformis
  4. Us014.19-80
    Wns Number
    US014.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Parodia microsperma
  5. Us015.19-80
    Wns Number
    US015.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Echinocactus horizonthalonius
  6. Us016.19-80
    Wns Number
    US016.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Thelocactus heterochromus
  7. Us017.19-80
    Wns Number
    US017.19
    Country / Post
    United States of America
    Date of Issue
    February 15, 2019
    Subject
    Cactus Flowers - Parodia scopa
  8. Us018.19-80
    Wns Number
    US018.19
    Country / Post
    United States of America
    Date of Issue
    February 23, 2019
    Subject
    Alabama Statehood 1819
  9. Us019.19-80
    Wns Number
    US019.19
    Country / Post
    United States of America
    Date of Issue
    March 22, 2019
    Subject
    Star Ribbon
  10. Us020.19-80
    Wns Number
    US020.19
    Country / Post
    United States of America
    Date of Issue
    March 29, 2019
    Subject
    Coral Reefs