Analysis of information sources in references of the Wikipedia article "埃及鎊" in Chinese language version.
The piastre of 1839 contained 1.146 grammes of fine silver, the piastre of 1801 approximately 4.6 grammes of fine silver. The most important Egyptian coins, the bedidlik in gold (= 100 piastres; 7.487 grammes of fine gold) and the rial in silver (20 piastres; 23.294 grammes of fine silver)
The piastre of 1839 contained 1.146 grammes of fine silver, the piastre of 1801 approximately 4.6 grammes of fine silver. The most important Egyptian coins, the bedidlik in gold (= 100 piastres; 7.487 grammes of fine gold) and the rial in silver (20 piastres; 23.294 grammes of fine silver)
