# Over strike An overstrike is a mint mark or design applied to an existing coin, usually by stamping or engraving, after the original coin has been struck. This process is often done to commemorate an event, denote a specific region, or change the denomination of the coin. For collectors, the presence of an overstrike is crucial because it fundamentally alters the coin's history and rarity. The value depends heavily on the significance of the overstrike—a rare or historically important one can dramatically increase the coin's worth, while a common one may only add minor interest. Always verify the authenticity of the overstrike, as counterfeit markings are common. A practical tip is to examine the strike points closely under magnification to ensure the overstrike appears integral to the metal, not merely applied on top. **Category:** coins ## What it means An overstrike is an impression applied onto an already struck coin. This impression is typically a design, a letter, or a denomination mark, added after the original coin has been minted. This is distinct from a mint mark, which is part of the original striking process. Overstrikes are used for various reasons: to commemorate specific events, to designate a particular territory, or to alter the coin's face value. In numismatics, the overstrike is a significant alteration, changing the coin's provenance and often its rarity profile. ## What it does to price The impact on price is entirely dependent on the overstrike's significance. A common, low-value overstrike might add 10-30% to the base coin value. However, a rare, historically significant, or error-related overstrike can result in multipliers ranging from 5x to 50x the base coin's value. For instance, a common state-issued overstrike might add $5 to a $20 coin. Conversely, a poorly executed or common overstrike can sometimes depress value if it obscures desirable original features. ## How to spot it Identification requires close examination. The telltale sign is the visual evidence of two distinct strikes. The overstrike metal should appear to sit atop the original coin's relief, not be integrated into the original die design. Look for sharp edges where the two strikes meet. Sellers must provide high-resolution photos, ideally under magnification, showing the strike points clearly. Common fakes involve poorly struck, shallow, or unevenly applied markings. Honest mistakes sometimes occur when a coin is accidentally struck with a secondary die. ## Buying smart Paying a premium for an overstrike is justified when the overstrike is documented as rare, historically significant, or part of a known, limited production run. If the overstrike is generic or common, the added premium should be minimal. A fair deal requires the seller to provide clear documentation or provenance regarding the overstrike's origin. If the seller cannot definitively prove the overstrike's significance, the premium should be heavily discounted. ## Selling smart Listing an overstruck coin requires precise description. The word "overstruck" must be used, followed by a clear description of the added mark (e.g., "Overstruck with 'X'"). The single most valuable photo to include is a high-magnification close-up of the strike point, clearly showing the superimposed nature of the design. This visual proof substantiates the rarity claim and justifies the higher asking price. ## See it priced - [Sold listings for "over strike" on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3Dover%2520strike%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-glossary-sold&p=md-glossary-sold) - [Current listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3Dover%2520strike%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-glossary-live&p=md-glossary-live) eBay links are affiliate links: JunkPal may earn a commission at no cost to you. _Updated 2026-07-31._ --- Source: [https://junkpal.ai/glossary/over-strike](https://junkpal.ai/glossary/over-strike) · JunkPal price guide (junkpal.ai) Values are medians of real closed eBay sales — estimates for reference, not offers or appraisals. More machine-readable surfaces: [/llms.txt](https://junkpal.ai/llms.txt)