"Of course. No matter what kind of gold it is, we can change it all here." As he spoke, the shopkeeper picked up the gold bar and inspected it.
Needless to say, the color was excellent. No matter which side it was, there were no words engraved on it. There was no explanation of where it was made. Only then did the shopkeeper realize that something was wrong. However, as the shopkeeper of a bank, he had seen a lot of the world and had encountered many things.
The innkeeper quickly regained his composure. He smiled and said, "I've never seen you both before. You seem unfamiliar. May I know where your residence is?"
He was probing for their backstory.