The ruins of the Ashburnham forge, situated a few miles to the north-east of Battle, still serve to indicate the extent of the manufacture.

At the upper part of the valley in which the works were situated, an artificial lake was formed by constructing an embankment across the watercourse descending from the higher ground,[9] and thus a sufficient fall of water was procured for the purpose of blowing the furnaces, the site of which is still marked by surrounding mounds of iron cinders and charcoal waste.

Three quarters of a mile lower down the valley stood the forge, also provided with water-power for working the hammer; and some of the old buildings are still standing, among others the boring-house, of small size, now used as an ordinary labourer's cottage, where the guns were bored.

The machine was a mere upright drill worked by the water-wheel, which was only eighteen inches across the breast.

The property belonged, as it still does, to the Ashburnham family, who are said to have derived great wealth from the manufacture of guns at their works, which were among the last carried on in Sussex.