Here is one u never see. Acrylic embossed 2 sided clamshell lighted sign. Has all original mounting and wiring. This is the best example of this sign I've found. Located 80 miles east of memphis tn. The item "Vintage 1950s 5ft shell embossed clamshell acrylic sign" is in sale since Tuesday, March 14, 2017. This item is in the category "Collectibles\Advertising\Merchandise & Memorabilia\Signs\Original\1930-69". The seller is "derevarnad0" and is located in Corinth, Mississippi. This item can't be shipped, the buyer must pick up the item.