EasternShoreMetal and I are curious if any of the members can give us some insight to what we have. He has an excellent pic of his so I am sure when he sees this he will post his. Thanks ahead for any idea I would say Kennedy half dollar in size
Based on past What-Is-It? forum discussions of those objects, and photos of them, it is the lid from a traveling inkwell. See photos below, from those past discussions. The photo of the intact non-excavated inkwell was posted by BigCypressHunter, so give him the credit, not me.