=Double-tree= (1) (_h_).--Made of steel. Hooks at either end for attachment of single-trees. Hole in centre for attachment to limber by double-tree bolt. =Double-tree Bolt-strap= (_i_).--Riveted to fork and supports the pole. Double-tree bolt, bolt-strap, and pole-prop eye one piece. =Single-trees= (2).--Made of steel with eye for attachment to double-tree hooks; hooks at ends for trace attachment. =Oil-and Grease-can Compartment.=--A flanged plate of sheet iron under the foot-boards riveted to the fork and right hound. =Pole-prop=[6] (1).--Permanently secured to the eye on bottom of the double-tree bolt-strap. =Pole-prop Strap= (1).--For holding up pole-prop, near pole-stop. =Pole-bolt= (1) (_e_).--Passes through the fork, the flanges of the double-tree bolt-brace and the pole securing it to the fork. =Pole-stop and Support= (1).--A flanged piece of plate metal (riveted to fork-flanges) on and against which the pole is supported. =Double-tree Bolt-brace= (1).--A flanged plate with holes in front for double-tree bolt and through the flanges for pole-bolt. It also forms the catch for the foot-board latch. =Pintle= (1) (_c_).--For connecting the carriage-body bolted between the fork-flanges. =Pintle-key= (1) (_d_).--For securing the lunette. =Pintle-key Chain= (1).--For securing the pintle-key to the limber. =Pintle Brace-rods= (2).--From the rear hound understrap-bolts to the rear pintle-body bolt. =Hound Brace-rods= (2).--From the front pintle-body bolt to the ring-bolt of primer-and obturator-boxes. =Primer-and Obturator-boxes= (2) (_n_).--Two water-tight cylindrical boxes with screw-lids, bolted through the bottoms to the axle, and by a ring-bolt to the hounds, for carrying unbroken boxes of primers and spare obturators. =Ammunition-chest, Wood= (_l_).--Ironed, with corrugated-iron plate on back. It is covered with duck, and the lid is secured, when down, by hasp and turnkey. Three compartments: end ones for projectiles, 21 in each; middle for 44 cartridges and two haversacks. The packing divisions for projectiles are of cast bronze. ON GUN-AND CAISSON-LIMBERS CAN BE CARRIED: Two paulins On and strapped to chest-lid; ordinarily not carried on caisson-limbers. Two spare obturators, or }In water-tight cylindrical boxes two or more (depending } under the chest; ordinarily not on size) boxes of } carried on caisson-limbers. primers, or one obturator} and one or more boxes of } primers. } One oiler, one tool-box, {In compartment under the foot-boards; one wheel-grease can with { wheel-grease can only ordinarily spatula. { carried on caisson-limbers. One pole-prop for end of { Under foot-boards, left-hand side, pole (now replaced by { between chest and axle. sheet-metal prop.) {