Question

What made the old man kaspar shake his head and sigh

Answer 1

The skull when his grand son found and came near to ask about this large rolling object ... Mainly at that time the old kaspar is telling him about the war and tells that it was a great victory but he does not that why it was called as great victory

Answer 2

When the Old Kaspar saw the skull in hand of Peterkin, he shook his head and sigh because the skull can be of a man who have died in the great victory
He even told that when he went to plough his field, his poughshare turned them out....