Start with the object you expect to find
Suppose you are looking for a historical book illustration that an institution has made publicly accessible. Keep the book title, a readable caption and any known collection name in your notes. Do not begin by guessing the identity of a person depicted in the image.
An illustration can have a photographic digital file while still being catalogued as an illustration. The distinction matters when the search interface filters by the kind of content rather than the file extension.
Inspect the selected content types
The Flickr Foundation’s guidance explains that Commons members may classify scans of illustrations as Illustration/Art. Its documented search example shows how categories omitted from the Content selection disappear from that result scope. The guidance describes opening Advanced Search and changing the Content choices. Source
Check the selections actually visible in your session. The Foundation’s explanation was published in 2023; it is a reason to inspect the filter, not evidence that every current session begins with the same defaults. If your interface does not expose the described control, record that limitation.
Keep the search words unchanged while adding the relevant content type. Changing both the query and the filter at once makes it harder to explain why a candidate appeared.
Keep a before-and-after search note
| Field | First search | Revised search |
|---|---|---|
| Search wording | Exact words entered | Same words for the category comparison |
| Collection scope | Commons or the actual visible scope | Scope retained or explicitly changed |
| Content types | Types visibly selected | Additional relevant type |
| Candidate | Actual item opened, if any | Actual item opened, if any |
The Foundation documents that selected types can be reflected in the resulting search URL. Copy the URL produced by the interface instead of inventing parameters from memory. Source
Check the institutional record
Open a plausible item and compare its caption, book or collection information and visible image with your reference. If the description links to an institution’s catalogue, read that record before using its details. Keep the institution’s attribution distinct from facts you independently confirmed.
A matching caption is not proof that you have the same edition or crop. For an illustrative example, two scans may show the same drawing but one omits a printed page number. Record that missing context instead of silently combining the files.
If the words in your reference are uncertain, use the screenshot-text checklist before changing the query. For a candidate found elsewhere, the image-source workflow explains the next source check.
If nothing appears, report the query and filters you checked. A search gap does not establish that the institution lacks the item or that the image never appeared online.