From left to right; correct, spotlamp mount, mounts slightly toward the center of the turret in front of the TC hatch. second is the Tank Commander's vane sight, mounts in front of the cupola for the TC to lay the gun close to the target for the gunner to pick it up, third; cal 50 roof mount travel lock, goes between the TC and loader's hatch, slightly forward. (with the MG forward, the barrel should drop into the travel lock slightly forward of the handle). When not in use it should lay down on the turret roof folding to the rear. last; cal 50 MG stowage bracket, mounts on the turret rear. In the HL, there's a slot for it to snap in.

Hope this helps,

Bill