Archivists use strictly numbered filenames to manage large digital collections.

: The numbers 115-138 often denote the specific frame numbers or a selection sequence from a larger shoot.

: Right-click the file and select Properties (Windows) or Get Info (Mac) to see if the "Camera," "Author," or "Copyright" fields contain information about the photographer.

If you have the file and need to find its origin, you can use these methods:

: Many archives and auction houses (such as Getty Images or Sotheby's) use this specific dash-numbering system to categorize candid or press photos. 🏛️ Museum or Academic Archives