RVA-S-009117-0011 The umbrella-lightning. Invention of Benjamin Franklin, American philosopher, physicist and statesman. 1778. Engraving by Deschamps and L. Guiguet Credit: Jacques Boyer / Roger-Viollet/Alinari WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Boyer, Jacques Collection: Roger-Viollet/Alinari Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 2400 X 3877 Image sizes (cm at 300 dpi): 20 X 32 Image sizes (MB): 3.58 Color space: RGB