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SCOTT NO
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1491 A415
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DATE OF ISSUE
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1993 Feb 16
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FACE VALUE
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33p
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COUNTRY
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Great Britain
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DESCRIPTION
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This stamp shows balance spring and temperature compensator in the marine chronometer which was invented by John Harrison (1963-1776).
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CLOCK
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Marine/Water Clock
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VARIATION
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Meter Mark, First Day Cover, Envelope
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