“Ware Nuts — THE sensitive ear is just now distressed by the vociferations of men and boys who go about the streets offering walnuts for sale and continually crying ‘War nuts!’  Much more painful to hear, however, is the remark so often said, that war-nuts are the nuts for soldiers, that of all nuts they contain the fullest kernels, and those are the kind of nuts wherewith fortifications are shelled.”

Source:  Punch, Vol. 67, Lemon, Mayhew, Taylor, Brooks, Crowley, Published at the Office, London, 1874, page 166