I want to know how much Sterling Silver is actually in this Zippo before I decide to buy it. Sterling silver is 92.5% silver by mass. The rest is other metals such as copper. I don't want a stainless steel Zippo with a silver lining. In my mind at at this price, the only things that shouldn't be sterling silver are the flints, wicks, and the cotton pieces on the inside.
Regarding the following product: