Royal Observatory Greenwich – postcard collection
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Estimated date
1952–57
Publisher
A.H. Barkway, Plumstead
Publisher's title
24-hour Observatory Clock Greenwich Park S.E.
Nominal size
5.5 x 3.5 inches (real photograph)
Publisher/printer ref.
340
Website ref.
PC0290

© A. H. Barkway.
 

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