Trench map : [France and Belgium].

Various editions. Military map series of Belgium and France showing Allied and enemy trenches, enemy's tracks, wire entanglements, cables, airlines, supply dumps, ammunitions, earthworks, dug-outs, huts, works reinforced by concretes, gun emplacements, trench mortars, observation and listening posts, mine craters and fortified, organised shell holes, hedges, ditches with water, conspicuous points, houses, railways, and hutments. Relief shown by contours, hachures, and formlines.; Panel title on verso of some sheets.; Panel title varies: France; Belgium; Belgium and France.; Includes various issues of some sheets.; On some sheets: O.S.O.; Each sheet is named and numbered individually.; Some sheets include text, reference, index to adjoining sheets, compilation diagram, grid bearing diagram, reference diagram, canal diagram, and cross section diagram.; Index to adjoining sheets and glossary on verso of some sheets.; National Library of Australia has some copies with handwritten annotations. ANL; Maps, and index indicating National Library of Australia holdings, in an online version at: http://nla.gov.au/nla.map-vn6415213.FranceBelgiumBelgium and Franc