Total number of records: 2
Count of Subject
Subject | Count |
world war, 1914-1918 | 2 |
military art and science | 2 |
directional hearing | 2 |
military topography | 1 |
Count of People and organisations
People and organisations | Count |
Innes, John R | 2 |
Great Britain. Army. Royal Engineers. Field Survey Battalions | 2 |