Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Exchange Media (hierarchy name)
5. exchange media (objects)

Narrower term/s

• postage stamps[+]
  • [postage stamps by form] [+]
    • precancels
  • [postage stamps by function] [+]
    • airmail stamps
    • postage due stamps
    • special delivery stamps
• tax stamps
• trading stamps
• telegraph stamps
• artistamps

Anotations

Scope note:

Seals or imprinted marks on documents or other objects, or small pieces of paper, usually adhesive-backed, issued by an organization to show that a payment has been made and that a service is due or that goods may be obtained.