How much can we really tell from this alleged saucer photo?

I’d separate what’s visible from what’s being claimed. The picture may show a luminous saucer-like shape, but that alone doesn’t establish what made it, where it was taken, or whether it came from the documents it’s associated with. The stated uncertainty about provenance is a major limit, not a small footnote.

The screen possibility matters. A photograph of an image projected or displayed in a room could look like a photograph of an object in that room. Without the original print, negatives, or a reliable account of how it was found and handled, the chairs and apparent setting don’t settle the question.

I’d look for a chain of custody before trying to decode the picture: when the print was made, who had it, and whether any independent records connect it to the alleged documents. Then compare a high-quality scan with the printed version and check whether the image has been cropped or reproduced in a way that hides useful context. If those checks aren’t possible, the careful label is “unverified photo,” not evidence of a recovered craft.