Togo postage stamps 1964 Year of the Quiet Sun imperforated set
The Togo postage stamp issue from 1964 dedicated to the Year of the Quiet Sun (formally the International Years of the Quiet Sun, or IQSY) is a scientific commemorative set.
Here are the key details about the issue:
- Year of Issue: 1964 (often noted with a December 12 issue date).
- Theme: International Years of the Quiet Sun (IQSY), a global scientific initiative (1964-1965) to study the Sun and its effects on Earth’s atmosphere during a period of minimal solar activity.
- Composition: The issue typically consists of:
- A Set of Postage Stamps (6 Values): This is the main commemorative set.
- A Miniature Sheet (Souvenir Sheet): A single-stamp sheetlet also issued with the theme.
- Designs: The stamps in the set are space- and science-themed, often depicting satellites and other equipment used for solar observation and geophysical research, such as:
- TIROS satellite
- Telstar 1 satellite
- OSO (Orbiting Solar Observatory)
- Catalog Numbers:
- Scott Catalog: The set of stamps is usually listed as Scott Nos. 500-505.
- Michel Catalog: The set is referenced as Michel Nos. 446-451.
- Yvert & Tellier Catalog: The set is referenced as Yvert Nos. 429-434.
- The corresponding miniature sheet is often found with a catalog number for a block/sheetlet (e.g., Michel B17).
This issue is a good example of the many space- and science-themed stamps that were popular among collectors in the 1960s. The set was also sold in imperforated pairs or as a full imperforated set, which are specialized varieties for this issue.
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