Ancient Beverage Container
Ages ago, our ancestors would consume beverages out of containers similar to this one. You can see that it has the top disc of aluminum while the rest of the container was made of steel. This indicates that this is from the transitional period between the all-steel containers and the later, all aluminum containers. Before this time, in order to access the beverage inside the container, our ancestors needed to use a tool known colloquially as a "Church Key" to puncture holes in the top of the container. During the transitional period the aluminum top had a feature known as a "pull tab" which tore a predefined opening in the top so the user could access the beverage... The part of the top that was removed was often discarded in a casual manner such as dropping it onto the ground. This led to hazardous walking conditions as the "pull tab" often had sharp edges that would cut the soles of ones feet when tread upon. It was at this time most of our ancestors began wearing shoes on a daily basis and this directly jump started the shoe industry we have today.
Can
Pull Tab
Gold Mine
Sierra Nevada
California