I am unsure what exactly this rucksack is. It could be early post war, made from scraps or it could be extremely late war. It appears to be made from a verity of components including the main body of a standard rucksack with British material and hardware for the shoulder straps. It doesn't seem like someone cut up the rucksack to make this, It seems more like it was made from an incomplete rucksack. It is not marked. I do suspect that this is very very late war as the manufacturer bothered to try to create makeshift Tornister strap loops on the sides and top of the ruck. An interesting and strange piece.