How to Trace an Archive Photograph
Use an accession number to check a caption, date, photographer and rights statement.

Start with the collection record
The retreat photograph carries Australian War Memorial accession number 011303/29. Its record gives an approximate date of January 1942 and attributes the image to an unknown British official photographer. Keep the approximate date in any caption unless another source supports a more precise one.
Record the credit and rights
Keep the institution, accession number and rights statement with your notes. A short caption explains what is visible. A link to the collection record lets readers check the original description and see what the institution knows about the item.