| This time, I give you the significance first. Repaired zippo on the right (D) have leaf humped cam springs. The space for the spring can go up and down by the cam has been made during the repairing process. The left picture shows a zippo with springs up and the right picture shows springs down. 
 Attention Super Vintage ZIPPO collectors! Pay attention HERE. As the value and price of the outside hinge zippos rise up, more people will be interested and care about the fully original pieces and parts. There are some dealers who pick up those factors and repair to be original. |