Category:Subseries OS 51

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Ordnance Survey: Photographs and Pictorial Images

OS 51/1493 'Road map of Great Britain', ten miles to the inch: showed Ministry of Transport classifications (1932)
OS 51/1511 Half-inch road map (1923)

Pages in category "Subseries OS 51"

The following 2 pages are in this category, out of 2 total.