nursehound
... that the rough skin of the nursehound was once used as an abrasive called "rubskin", which cost a hundred times more than sandpaper?
... that the rough skin of the <b id="mwBEQ"><a href="./Nursehound" id="mwBEU" rel="mw:WikiLink" title="Nursehound">nursehound</a></b> <i id="mwBEY">(pictured)</i> was once used as an <a href="./Abrasive" id="mwBEc" rel="mw:WikiLink" title="Abrasive">abrasive</a> called "rubskin", which cost a hundred times more than <a href="./Sandpaper" id="mwBEg" rel="mw:WikiLink" title="Sandpaper">sandpaper</a>?