拍品专文
Middeldorf notes that mortars of this model 'early type, second group', have datable examples from the middle of the fifteenth century to 1531. He cites his number 10 as similar to the Truesdell bronze, but somewhat smaller, and his number 7 which has a similar recessed base with trefoils on the tops of the lancets (U. Middeldorf, Fifty Mortars: 15th-18th Century, Florence, 1981).