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Description: | Two obelisks, the larger one in granite and the smaller in white stone. Additional Information: Originally erected in 1824 to act as an azimuth mark for a new telescope being installed at Greenwich. Abandoned in 1836.(1) Known as the Bradley Obelisk. (2) When the line of zero longitude was established by international agreement in 1884 it was found that the true course of the Greenwich Meridian lay 19 feet to the east, where a second, smaller obelisk has been placed by the O.S. known as Airy Obelisk.(2) | Subjects: | Obelisk | Source: | Vads | Creator: | Other: Pond, John | Identifier: | http://www.vads.ac.uk/large.php?uid=6952... | Go to resource |
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