Knowing if it was in a product listing , a library archive , or a family heirloom would help me give you a much more precise description.
While the American Civil War is a U.S. event, many international collectors catalog Civil War-themed stamps using these shorthand notations. 10 Civil War - 8d
Less commonly, this may refer to a specific military designation, though it doesn't fit the standard U.S. Army "Regiment/Company" format perfectly. Knowing if it was in a product listing
During the war, "Sanitary Fairs" were held to raise money for Union soldiers. Collectors often seek out items like the 10-cent Sanitary Fair Stamp sold through eBay, which are categorized by specific alphanumeric codes in dealer inventories. 2. Archival or Inventory Coding Less commonly, this may refer to a specific
In stamp collecting circles, "8d" often refers to (pre-decimal British or colonial currency), while "10" could refer to a plate number or a specific Scott Catalog number.
If you found this written on the back of a photograph, a document, or a storage box, it likely follows a standard archival format:
Could represent Box 10 or Folder 10 in a specific collection. Civil War: The primary subject matter of the contents.