1957 Egyptian 10 Piastres Silver Coin

Here is a coin I found while searching though a box of world coins. It is a 1957 Egyptian 10 Piastres coin. The coin is 7.00 grams and 72% silver (so around 0.16 ounces of silver). The image of the Sphinx was a dead give away that it was Egyptian, but everything else required research since the writing is in Arabic.

This coin got me thinking. Even though I have never been to Egypt and may never go, their coin still has value to me because of the silver. On the other hand, all of those other coins in the box are worthless because I will never visit the countries or the coins are no longer legal tender.