| Year | 1915 |
| Weapon Type | Medium Field Howitzer |
| Origin & Designer | France/St Chamond |
| Numbers Produced | 390 |
| Crew | 10 |
| Calibre | 155mm |
| Elevation | -5° to +40° |
| Traverse | 6° |
| Breech | Vertical Sliding Block |
| Recoil | Hydrospring |
| Gun Sight | [@gun_sight] |
| Gun Mount | [@gun_mounts] |
| Carriage | Box Trail |
| Trailers | [@trailers] |
| Gun Shield | 4mm |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 2.517mm (L/17.8) |
| Overall Length | [@length] |
| Width | 1.85m |
| Height | [@height] |
| Weight | Weight in Traction: 3.400 kg Weight in Action: 2.860 kg |
| Round Weight | 43.5 kg (HE Bagged Charge) |
| Muzzle Velocity | 367 m/s |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | 3 r.p.m. |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Maximum Ceiling | [@maximum_ceiling] |
| Maximum Ground Range | [@maximum_ground_range] |
| Maximum Range | 9.300m |
| Armour Penetration | [@armour_penetration] |
| Traction | Horse Drawn (Eight Horses) |
| Variants | [@variants] |
| Notes | The 155mm mle 15 was first issued in 1916 and served until 1918. Many were still in service in 1940 and were again used against the Germans. |