From their : "Its purpose is to provide accommodation in London for residents of Gibraltar who are sent to London Hospitals for consultation and/or to receive medical treatment under the Gibraltar Health Authority Sponsored Patient Scheme and it has been doing so since 1990 when it first opened its doors to patients and their escorts at 47 Princes Square..." Moved to 19-23 Norfolk Square in 2018, where there is another near-identical plaque.
Mount Calpe was the Roman name for Gibraltar.
Credit for this entry to: Alan Patient of www.plaquesoflondon.co.uk

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