What Is The Significance Of The 1969 US Apollo 11 Commemorative Stamp's Differing Perforation Varieties (Scott #1371, 11.5 X 10.5, Vs Scott #1371a, 10.5 X 10.5) In Relation To Their Respective Print Runs, And Are There Any Notable Instances Where These Variations Impacted The Stamps' Usage On Covers Related To The Apollo 11 Mission?

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The 1969 US Apollo 11 commemorative stamp, issued to celebrate the historic moon landing, features two perforation varieties: Scott #1371 (11.5 x 10.5) and Scott #1371a (10.5 x 10.5). These variations hold significance for collectors and philatelists due to their differing perforation gauges, which are measured as the number of holes per inch. The perforations affect the stamp's separability and are a point of interest for collectors seeking rare or unique specimens.

Significance of Perforations:

  • Scott #1371 (11.5 x 10.5): This variety was part of the initial print run, making it more common. Its compound perforation (different gauges in horizontal and vertical directions) was typical for the time, ensuring ease of separation.
  • Scott #1371a (10.5 x 10.5): Released later, this variety features a uniform perforation gauge, possibly due to production changes or cost-saving measures. It is less common and thus more valuable to collectors.

Print Runs and Rarity:

  • The initial print run of Scott #1371 was larger, driven by high demand following the Apollo 11 mission. This made it widely available and used on numerous first day covers (FDCs).
  • Scott #1371a, with a smaller print run, is rarer. Its later release might have limited its use on FDCs, making such covers more sought after by collectors.

Impact on Covers:

  • First Day Covers (FDCs): Scott #1371 was predominantly used on FDCs due to its earlier availability. Covers with Scott #1371a are less common and more valuable.
  • Notable Usages: Both varieties were used in special cancellations and events, with some featuring astronaut autographs, enhancing their collectibility.
  • Functionality: Despite differences in perforation, both varieties served their postal purpose effectively, with perforations not affecting usability.

Collectibility and Context:

  • The stamp's design, featuring an astronaut and the Moon, ties into the mission's theme, with perforation variations adding complexity for collectors.
  • The USPS likely adjusted perforations in subsequent printings due to production considerations, reflecting the high demand for the stamp.

In conclusion, the perforation varieties of the Apollo 11 stamp are significant for their impact on collectibility, print run sizes, and usage on FDCs, making them a fascinating aspect of philatelic history tied to a pivotal moment in space exploration.