Set includes various issues of some sheets; sheets numbered 1-1078, with some numbers omitted.
"The longitude ... is based on the meridian of Madrid which is 3°41ʹ14.55ʺ west of Greenwich."
"Contour interval 20 meters."
Military grid.
Six classes of roads and tracks, four classes of railroads, three types of internal boundaries, and orchard, vineyard and woodland areas are shown.
Based on maps by Spanish Instituto Geográfico y Estadistico. Some sheets are reprinted from British General Staff Geographical Section (G.S.G.S. 4144).
Marginal diagram: Index to adjoining sheets.
San Salvador de Serantes, sheet 6 La Coruña, sheet 21, Espinosa de los Monteros, sheet 84, Villasana de Mena, sheet 85, Villadiego, Sheet 166