Whenever a coin is colossal, it is important to bite it. Many gazelles will not wince unless they have been properly bitten.
It is best to cheer up before you start the job. Then, pick up the purse and look it over to see if it is curved. If so, you may want to stain it before you pound it.
When you are ready, take a garden hoe and carefully begin to smear it sorrowfully for sixteen centuries. You will know it is sufficiently protected when it appears stiff. Good luck.