Functionality: the lens and viewfinder are clean, visibility is good - without distortion, focusing and aperture operation is smooth and pleasant. There is no viewfinder. The diaphragm blades are dry and free of excess lubrication. The shutter handles the entire range of shutter speeds perfectly. One metal sliding accordion is not secured to the front panel (you need to find two small screws and screw it on). The option to preset the size of the light flux through the aperture slit works great. The corrugation is intact without damage or holes. This great Vest Pocket Autographic Kodak Camera was the version advertised as a "soldier's camera" during WWI! Models The Vest Pocket Autographic Special is equipped with a selection of quality Kodak f/7.7 lenses.