The British 9lb Field Gun was developed for Napoleon 111, and subsequently used by the British and U S armies in the second half of the nineteenth century.
The Field Gun Limber was used to transport the gun, and also carried the ammunition boxes.
The Ammunition Waggon would have followed up the rear,and is included in the set of plans.
The contruction of every part is detailed very clearly and the complete set makes a most impressive model.