Tetradrachm of Alexandria under Severus Alexander c. 233 - 234

Editor: This is a tetradrachm of Alexandria under Severus Alexander, currently residing at the Harvard Art Museums. It's small, but the texture and the green patina give it such presence. What strikes you about the material qualities of this coin? Curator: The patination is crucial; it speaks to the processes of oxidation and corrosion, signifying the sheer duration of its existence as a material object. Notice how the green encroaches upon the incised portrait, almost obscuring the original design. Do you see how this tension between the imposed image and the altering effects of time creates an intriguing visual dynamic? Editor: Yes, it's like the coin is slowly returning to its elemental state. I hadn't considered the tension you mentioned. Curator: Indeed. The coin's surface becomes a record of both its creation and its slow decay, a compelling juxtaposition of intention and entropy. Editor: I see what you mean. It makes you think about the impermanence of things. Curator: Precisely. A valuable lesson in this object's materiality.