Fair is use is claimed for this photograph in the The Beatles articles:

• The image is of a lower resolution than the original photograph (copies made from it will be of inferior quality).
• The photo is being used for informational purposes only, and its use is not believed to detract from the original in any way.
• No free alternative is known to be available. It is the only known photo of Mona Best, and serves to inform the reader.
• The image is important because it is the telegram that Epstein sent to the Mersey Beat magazine to announce that he had secured The Beatles their first recording contract.