After carefully examining the copper piece in his hand under the sunlight, Leonard Ethan found that it should be a decorative metal plate fixed somewhere.
This is because there is a sort of simple pattern hammered on the surface of the piece, and there also exists a small circular hole in the middle, which should be used for nailing the copper piece into place.
"Can you tell me where the contents of this bottle were dug up?" Leonard Ethan, having carried out a brief inspection of the other bottles and confirming there was no more valuable find inside, carried both the bottle and the copper piece into the tent.
"My God, your sixth sense is incredibly sharp." Pierce, who was chatting with Fairmont, widened his eyes at the sight of the shining trinket in Ethan's hand. "This is the most valuable thing we have found over the past week."