I have 2 ashtrays made from old Spanish coins. 1 is made from 2 coins, an 1877 5 Pesetas coin and an 1892 50 Centimos coin. The other is made from 3 5 Pesetas coins (1876, 1893, & 1891) and 3 50 Centimos coins (1894, 1880, 1904). How much would these be worth?