This in from PAN reader Jennifer at the Amgueddfa Cymru/National Museum Wales
Many thanks for getting back to me Will.
Please find attached a scan of the reverse side of the Hylton photograph. Do you have any further information about this agency? We hold some photographs by them and would like to publish but obviously are looking for permission.
I also have another orphan photo and so attach a scan of that too – however, this one doesn’t even appear on your Directory so my hopes aren’t high!
I would appreciate you circulating them, even if it’s just to prove that we’ve tried to locate the copyright source.
Contact [email protected] if you own the copyright on these collections.