What ExifTool sample files exist for metadata testing and what do the repository and sample-image page say about their reuse?

At ExifTool 2200871d the README says it is distributed on the same terms as Perl (Artistic License or GPL), while the LICENSE file is the GPL v3 text; the repository ships 194 verification test files under t/images (722,199 bytes) with no file-level licence statement found; the separate sample-image archive replaces main images and strips previews 'to avoid copyright problems' while preserving EXIF/APP segments, without stating a licence. Curator qualifications: Licence conflict preserved (Perl dual terms vs GPL v3 file); which terms cover t/images is not stated. Per-format counts (JPG 41, XMP 10, etc.) not re-counted. Text/metadata only; no images downloaded. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary. Limitations: Text/metadata only; no images downloaded. [component_reuse_restriction] Do not redistribute ExifTool test images in fixtures until terms are confirmed. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://github.com/exiftool/exiftool/tree/2200871d9cef988051d2a99d67df3bda6cbb30a8",
      "note": "exiftool README at 2200871d, lines 176, 235; LICENSE at 2200871d (bytes equal producer pin 3972dc97; same bytes as the standard GPL v3 text read for CA-B033); gh api -X GET git/trees/2200871d?recursive=1, t/images blobs; exiftool.org/sample_images.html"
    },
    {
      "url": "https://exiftool.org/sample_images.html",
      "note": "exiftool README at 2200871d, lines 176, 235; LICENSE at 2200871d (bytes equal producer pin 3972dc97; same bytes as the standard GPL v3 text read for CA-B033); gh api -X GET git/trees/2200871d?recursive=1, t/images blobs; exiftool.org/sample_images.html"
    }
  ]
}