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First day of issue

first day on which a stamp is sold at a country's post office counters
Place philatelic_term Q126616154
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First day of issue

Summary

First day of issue is a philatelic term[1].

Key Facts

  • First day of issue's instance of is recorded as philatelic term[2].
  • First day of issue's subclass of is recorded as point in time[3].
  • First day of issue's subclass of is recorded as publication date[4].
  • First day of issue's facet of is recorded as postage stamp[5].
  • First day of issue's described by source is recorded as Lexikon der Philatelie (5 ed.)[6].
  • First day of issue's different from is recorded as First day (of validity)[7].
  • First day of issue's different from is recorded as local first day of issue[8].

Body

Designation and Status

First day of issue's instance of is recorded as philatelic term[2].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . Großes Lexikon der Philatelie (2 ed.). wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . Lexikon der Philatelie (5 ed.). wikidata.org.
  7. [8] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). First day of issue. Retrieved May 3, 2026, from https://4ort.xyz/entity/first-day-of-issue-q126616154
MLA “First day of issue.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/first-day-of-issue-q126616154.
BibTeX @misc{4ortxyz_first-day-of-issue-q126616154_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{First day of issue}}, year = {2026}, url = {https://4ort.xyz/entity/first-day-of-issue-q126616154}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): First day of issue — https://4ort.xyz/entity/first-day-of-issue-q126616154 (retrieved 2026-05-03)

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