12 (L25) Howitzer mount MKA; 14 (L45) Barbette mount, 50ÿ Elevation; 14 (L50) Barbette mount, 35ÿ Elevation; 16 (L45) Barbette mount, 45ÿ Elevation; 16 (L50) … Infantry accompanying carriage mark D. with 47 mm infantry accompanying gun mark B / Bethlehem Steel Company Bethlehem infantry accompanying gun Mobile artillery material Trench mortar carriage mark C., carrying 132 mm, trench mortar mark B., with their transport vehicles / Bethlehem Steel Company Trench mortar carriage mark A., carrying 80 mm, trench mortar, mark B., with ammunition limber and transport vehicle / Bethlehem Steel Company Bethlehem Ordnance. 105 m/m field gun Bethlehem steel. Bethlehem ordnance, 105m/m field gun