We read the serial off the card photo, so you can find the exact card even when it's not in the title.
Browse every serial-numbered sports card listed on eBay, from one-of-one chase cards to /5, /25, /99, /150, and beyond. Continuously updated.
Every serial-numbered MLB card in one place, the parallels and inserts stamped with a copy number like 27/99. We read the serial off each listing photo, so you can find a specific copy, a jersey match, a bookend, or a 1/1, even when the seller never put the number in the title.
100+ listings
Serial Scout uses computer vision to detect serial numbers from eBay listing photos, including listings where sellers don’t mention the serial number. While detection is usually accurate, image quality and other factors can result in an incorrect serial number. Always confirm the serial number using the seller’s photos, or contact the seller if you’re unsure, before making a purchase.
Affiliate disclosure: As an eBay Partner, Serial Scout earns a commission from qualifying purchases at no additional cost to you. Serial Scout is an independent service and is not affiliated with eBay Inc.
ebay$4.45
ebay$549.99
They are baseball parallels and inserts stamped with a copy number out of a limited print run, like 27/99, meaning that card is the 27th of only 99 made. Fewer copies means more scarcity, which is the biggest driver of a numbered card's value.
Search the number you want. The problem is that sellers rarely put the serial number in the listing title, so a normal search misses most of them. Serial Scout reads the serial off the listing photo, so you can search by an exact numerator and denominator even when it never made the title.
The 1/1 (the single copy of that card) sits at the top. After that, a jersey match (the copy number equals the player's jersey number, like Aaron Judge 99/99), the bookends (1/X and X/X), and low numbers tend to carry the biggest premiums over an ordinary copy in the same print run.
![2026 Topps MLB Series 2 Kutter Crawford [All Star Game Red] #544 /5 Red Sox](https://i.ebayimg.com/images/g/xU4AAeSw9~xqe19z/s-l400.jpg)
