Rare find- Vintage Tupperware Square Sheet Cake Keeper

Retro Square Cake Taker Tupperware. Designed to hold a 10” square cake or dessert up to 4-3/4” height. Or flip it to hold sandwiches or cookies for a gathering. Was a Hostess Gift in the 1980’s therefore a rare find. 11”x 11”x 5” Great condition. Slight knife cuts into plastic bottom. Two light discolouration from a marker (as pictured) where I identified the container as mine. Shipped from a 5 star seller & fast shipper, pet free & smoke free home. Style tags: Tupperware, cake keeper, vintage, 1980’s