Lane-Poole, Stanley. Catalogue of Arabic Glass Weights in the British Museum. 339, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.72, no.89
Lane-Poole, Stanley. Catalogue of Arabic Glass Weights in the British Museum. 339, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.72, no.90