Top lid box with a drop-front tray

Top lid boxes are a classic construction used for the storage of large-sized objects, such as historical costumes, banners or maps. These boxes can be stacked on one another provided that they are of the same size. 

The Vb box is mostly used to store fragile large-format graphic art, maps and posters. Drop-front tray facilitates safe sliding out of the stored object. This construction is also recommended when (because of the size) it is not possible to make a clamshell box of a given size.