The assembly consists of a flat base which has the perfume bottle permanently fixed upon it. The packing box is rectangular and fits exactly over the base, so that when the box is closed, the box and base form a continuation of one another. The screw stopper for the bottle is fixed under the top end of the packing box, so that the bottle may be opened by unscrewing the box from the base. This also unscrews the bottle stopper. The operation is reversed for closing the bottle. The system may be used for volatile liquids such as alcohol or perfumes.