The image shows a ruler next to a coin with a face on it, resting on a surface.
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The image shows a ruler next to a coin with a face on it, resting on a surface. The coin appears to be a tetradrachm, a type of ancient Greek coin, with a diameter of approximately 1.5 mm. The face on the coin is of a man with a crown on his head, wearing a long robe and holding a staff in one hand and a shield in the other. The ruler is likely used to measure the size of the coin.
