STEREO IMAGE PAIRS can give a nice 3-dimensional effect with full colour. They are limited in size, though and require some effort on the part of the viewer. Please click on a thumbnail above to go to the relevant stereo pair. When you get there, gaze at infinity at a point between the two images. You should eventually see three images. The middle image will be a combination of the left and right images and it should look solid (stereo or 3d). The effect can sometimes be improved by holding a sheet of paper or card perpendicular to the image so that your left eye only sees the left image and your right eye only sees the right image. To focus, move your head closer to or further from the image. It might take a few tries to achieve the effect.