48 Porcelain Shell Sign Double Sided 1939 Vintage Authentic Sign

  

The product is a 48 porcelain shell sign that is double-sided and dates back to 1939. This vintage sign falls under the category of collectibles, specifically in the advertising and gas & oil themes. It is a unique piece of merchandise and memorabilia that likely holds historical value and nostalgia for those interested in retro advertising. The double-sided design and porcelain material add to the authenticity and durability of this unique sign.