An archaeologist who has just unearthed a long-sought-after pair of ancient treasure chests.
One chest is plated with silver and the other is plated with gold.
According to the legend one of the two chests is filled with a great treasure whereas the other chest houses a death cursing spell in the form of a dragon.
Faced with a dilemma archaeologist then noticed that there are inscriptions on the chest. Based on these inscriptions which chest should he open?
$$\mathrm{Gold\, Chest}- \mathrm{One\, of\, these\, inscriptions\, is\, true}$$
$$\mathrm{Silver\, Chest- \mathrm{This\, chest\, contains\, the\, dragon}}$$
Note: Thanks to his understanding of the culture from which these chests came, the archaeologist knows that the gold chest's inscription could also be translated as "One and only one of these inscriptions is true".
I already know the answer, what I am seeking here is a nice explanation.