Package convertible into a frame

A package (10) convertible into a frame, comprising:

• a flat rectangular support plate (11) comprising a front surface (70) and a rear surface (72),
• a rectangular frame element (19) comprising an outer wall (40) arranged at its outer circumference with a lower and an upper edge (43, 44) and an upper wall (42) of the frame element (19) adjoining with the upper edge (44) on the inside of the frame element (19), and
• a rectangular lid element (60),
• characterised in that the support plate (11), the frame element (19) and the lid element (60) are formed and arrangeable with respect to each other in such a way that
• in the package state
• the support plate (11) is adapted to be circumferentially grippable by at least the lower edge (43) of the outer wall (40) of the frame element (19), and
• on the upper wall (42) of the frame element (19) parallel to the support plate (11) the lid element (60) is arranged so that a package in parallelepiped shape is created,
• wherein the support plate (11) and at least the lid element (60) form the top and the bottom side of the package (10), and the outer wall (40) of the frame element (19) forms the side walls of the package, and
• in the frame state
• the frame element (19) is arranged on the front surface (70) of the support plate (11) along its circumference,
• the lid element (60) is arranged either on the rear surface (72) of the support plate (11) or between the front surface (70) of the support plate (11) and the frame element (19),
• wherein the profile of the upper wall (42) of the frame element (19) is formed with at least one step (80) with an upper (82) and a lower leg (81), which step is lowered towards the side of the opposite outer wall (40), wherein the length and width of the lid element (60) enable an arrangement of the lid element (60) on the lower leg (81) of the step (80).