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Royal Mail
Royal Observatory Greenwich Miniature Sheet
Catalogue code
MZ213
A fascinating collectible honouring prize-winning clockmaker John Harrison's perseverance, determination and ingenuity.
Includes four First Class portrait stamps.
The Miniature Sheet's four First Class stamps showcase John Harrison's marine timekeeper prototypes for measuring longitude at sea, including H4 with its convention-defying watch design.
A superb souvenir celebrating a pioneer whose ideas would be adopted by future clockmakers and would inspire the marine chronometer that would revolutionise 18th-century celestial navigation.
Stamp specifications
|
Stamp format |
Portrait |
|
Stamp size |
27mm x 37mm |
|
Miniature Sheet size |
115mm x 89mm |
|
Design |
Steers McGillan Eves |
|
Printer |
Cartor Security Printers |
|
Print process |
Lithography |
|
Perforations |
14 x 14 |
|
Phosphor |
Bars as appropriate |
|
Gum |
PVA |
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