Estimated date |
2007 |
Publisher |
National Maritime Museum |
Publisher's title |
The Time Ball at the Royal Observatory, Greenwich |
Nominal size |
6.0 x 4.0 inches |
Publisher/printer ref. |
Barcode 5055187037894 |
Website ref. |
PC0742 |
© National Maritime Museum, Greenwich, London (Negative No. F6073-027). Published 2010. |
© 2014 – 2025 Graham Dolan
Except where indicated, all text and images are the copyright of Graham Dolan