The 8" inch by 8" inch sign is 1/16th. Inch heavy gauge steel for thickness. And weighs approximately 17.75 ounces.
Has nicely detailed and colorful flag images of the five major lines. Backside is a gray enamel (see photos). My research found two larger 17" by 15" double sided signs. This is a smaller single sided sign that measures 8" by 8". One of the larger signs is in the Paul Louden-Brown collection of 7000 White Star Line memorabilia. Item is from an estate sale of a sign collector. This item is in the category "Collectibles\Transportation\Boats & Ships\Cruise Ships & Ocean Liners\White Star & Titanic".The seller is "streammedia" and is located in this country: US. This item can be shipped worldwide.