Magazine Gate (Images)
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LDY014:033
This gate was built in 1865. Recently restored cannon are mounted on replicas of mid-17th-century block carriages. The two cannon closest to Shipquay Gate bear the Tudor rose-and-crown emblem; one has a date stamp of 1590.
This was gate is built of rubble stone with ashlar sandstone dressings. It has a single segmental-arched opening
Derry~Londonderry: A guide to the historic city walls, Northern Ireland Environment Agency
Metadata | Information |
Source | The Discovery Programme |
Contacts |
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Copyright Credit Line |
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Europeana Rights |
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Spatial |
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Protection Type |
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Start Date | 1600 |
End Date | 1800 |
Period Name | Post Medieval Period |
Period Name | 19th Century AD |
Materials | Stone, Rubble, Sandstone |
Heritage Asset Type | Gateway |
Metadata | Information |
Name | Phase-based Terrestrial Laser Scanning |
Description | Phase based terrestrial laser scanning using a Faro Focus 120 laser scanner. The instrument quotes the following specification: Distance accuracy up to ±2mm. Range from 0.6m up to 120m. Measurement rate up to 976,000 points/sec. Intensity & RGB. Integrated colour camera. Photorealistic 3D colour scans with up to 70 megapixels. Parallax-free colour overlay. |
Purpose | Measured survey |
Techinques | Georeferenced using RTK GPS with VRSnow corrections,Phased based terrestrial laser scanning |
Equipment | Trimble 5800 RTK GPS,Faro Focus 3D 120 |
Actor | Gary Devlin, Individual, Geo-surveyor |
Actor | Robert Shaw, Individual, Senior Geo-surveyor |