A1 Little Boy prototype
Here is the first image of the scale model of "Little Boy"; 75mm long weighing 125 grams and painted in the classic opaque military green used during WW II The two characters on the side of the model are there to show Little Boy's effective size (3 meters long with a diameter of 70 cm). In the background there is a small leaflet illustrating technical data and general "Top secret" information..