Two Parian figures of The Greek Slave, mid 19th century, after Hiram Powers, the naked figure

Two Parian figures of The Greek Slave, mid 19th century, after Hiram Powers, the naked figure chained to an adjacent post draped in a tasselled cloth, the smaller Minton, the larger Copeland, incised and impressed marks, some losses and restoration, 47cm max. (2)