Old Ordnance Survey maps.
Great Britain.Ordnance Survey.
Alan Godfrey Maps.
Consett : Alan Godfrey Maps,
2004
Panel title.
Reproductions, at slightly reduced scale, of maps originally issued by the Ordnance Survey at scale 1:2500.
Includes ill., texts describing the history of each area mapped.
Sheet 9.08. Portadown (1906)