HIP-S-000266-7878 Royal Navy submarine HMS 'Grampus' off Portsmouth, Hampshire, 1962. 'Grampus' was a Porpoise-class submarine launched in 1957. From the Aerofilms Collection Credit: Historic England Archive / Heritage Images /Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Date of photography: 1962 Collection: Heritage Images /Alinari Archives, Florence Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 4782 X 4782 Image sizes (cm at 300 dpi): 40 X 40 Image sizes (MB): 8.23 Color space: RGB