Balog, Paul. The Fatimid Glass Jeton.Naples, 1974-75298, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873). p.65, no. 22
Balog, Paul. The Fatimid Glass Jeton.Naples, 1974-75 298, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.66, no.28
Balog, Paul. The Fatimid Glass Jeton.Naples, 1974-75 298, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.66, no.24
Balog, Paul. The Fatimid Glass Jeton.Naples, 1974-75 298, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.66, no.26