The idea behind Gold/Silver coin is you just need 1 Coin in your wallet to buy all groceries
in Western World you buy your grocery for 50-60 Dollar range or may be 100 dollar
Also you can't take Gold/Silever Coins in bag out of country metals are detected at airport
1 Pakistani Dinar = 1 Dollar value of Silver Coin
10 Pakistani Dinar = 10 Dollar value of Silver Coin
25 Pakistani Dinar = 25 Dollar worth of Silver Coin
50 Pakistani Dinar = 50 Dollar value of Silver Coin
<--This 1 Coin can buy you your weeks grocery
100 Pakistani Dinar = 100 Dollar value of Silver Coin
500 Pakistani Dinar = 500 Dollar Value of Gold
1000 Pakistani Dinar = 1000 Dollar worth of Gold
The value of Gold or Silver
does not diminishes
If you discover a pot of Roman Empire Gold and Silver Coins you can take it to Gold/Silver shop and get money recovered
Here are Spanish Gold Coins for reference, still 100% cashable
4.5 Million Dollar worth of Gold coins recovered recently all cashable
It is cashable becasue it is a actual "Commodity" not paper promise
Good old days of hording Gold Coins