Balog, Paul. The Fatimid Glass Jeton.Naples, 1974-75 45, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.63, no.4
Balog, Paul. The Fatimid Glass Jeton.Naples, 1974-75 50, Rogers, Edward Thomas. "Glass, As a Material for Standard Coin Weights," NC N.S. 13 (1873)., p.63, no.3