as it is captioned as it is likely to qualify under pd old or similar if you go to the source file you can download then zoom to examine the writing in the bottom right hotel westgate it may then be able to trace the hotel which presumably distributed it therefore get an exact date you may also be able to zoom to see the detail of the posters displayed although when i tried this the pixelation was too bad to read alternatively again why not just contact the cleveland pools web site ask where they got it from talk