Following my last post when I unexpectedly acquired these along with an S Range Napoleonic Austrian Army I thought they would be an appropriate post here.
If you studied your S Range catalogue carefully you could find a section called Miscellaneous, which contained goodies including camp followers, generals of different periods, pack horses and oxen, and Napoleon sat at a table.
The above are FSD 1s and FSD 2s, Horse and Musket Period Field Defences, Chevaux de Frise - 60mm length at the back of the photograph - and Stakes - 55mm at the front.
These are heavy lumps of metal and I had never seen them before.
FSD 3s and 4s were gabions and fascines.