Ordnance Survey Ireland Old Maps: Abstract a collection of mainly 19th century maps of almost 150. Web the ordnance survey (os) was established in 1824, under the direction of colonel thomas colby, assisted by lieutenant thomas larcom, to. Web the most comprehensive, topographic mapping covering all of ireland, and northern ireland, from the 1820s to the 1960s.

Ordnance Survey Ireland Old Maps

Web ordnance survey ireland (osi) 19th century historical maps. We also have an extensive collection of ordnance survey maps dating from the first government. Web the most comprehensive, topographic mapping covering all of ireland, and northern ireland, from the 1820s to the 1960s.