Casgliadau Arlein

Full title - Ordnance Survey of England and Wales. Combined Index Showing Civil Parishes and the Ordnance Survey Maps of Caernarvonshire on the 6-inch and 25-inch scales. Surveyed 1885-88. Revised 1910-14. Partially Revised 1937-39. Parish Boundaries correct to 1-12-59. Black and red print on light yellow paper.