Sentence:  Still existing on a `` Northern Union '' telegraph form is a typical peremptory message from Peru grocer J. J. Hapgood to Burton and Graves ' store in Manchester - `` Get and send by stage sure four <WSD>pounds</WSD> best Porterhouse or sirloin steak , for Mrs. Hapgood send six sweet oranges '' . 
Meaning of the word marked with <WSD> tags:  16 ounces avoirdupois