Pillbox (TYPE FW3/22): S0015284 H.M.S. Tern
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1 x Twin 6pdr with no overhead cover. Unigue double split beam searchlight houses.
Located either side of Northside Road in Birsay Latitude / Longitude: 59.13761124, -3.30437422 Easting / Northing: 325461, 1028597 OS Grid Reference: HY […]
1 x 12pdr QF installed in a temporary emplacement allowing all round traverse.
Anti-Torpedo Close Protection Pontoons (ATCPP), were experimental devices used for close protection of naval vessels, at anchor in Scapa Flow, from attack […]