Vintage Eastern Airlines "You Gotta Believe" Advertising Cube

Description

Vintage Eastern Airlines "You Gotta Believe" Advertising Cube. Condition is "Used". Shipped with USPS First Class.
This little cube measures about 2 and 1/4 inches squared. It has something inside of it but I don't think there's any way to open it. It says you got to believe Eastern secret is inside and there's something inside this cube but I really think it's just something that shakes ot rattles. Anyway Eastern airlines is long gone but this is a cool vintage item from them.