Display system

A billboard extender comprising:

• a lower frame comprising two substantially vertical supports;
• and
• an extendable frame comprising two movable supports that move within the two substantially vertical supports and a top lateral support extending between tops of the two movable supports, the top lateral support comprising a first lateral member having a substantially vertical portion, a substantially horizontal portion and a bend between the substantially vertical portion and the substantially horizontal portion, and a second lateral member spaced apart from the first lateral member and having a substantially vertical portion, a substantially horizontal portion and a bend between the substantially vertical portion and the substantially horizontal portion so as to prevent the extendable frame from being inserted into the lower frame upside down.

A display unit comprising:

• a base fixture having a platform, two substantially vertical members extending upward from the platform, two top lateral supports extending between the two substantially vertical members at a top of the two substantially vertical members, and two lower lateral supports extending between the two substantially vertical members between the platform and the two top lateral supports;
• and
• an extendable billboard support located between the two lower lateral supports and between the two top lateral supports and having an outer frame and an inner frame, the outer frame having two substantially vertical elements and two fixed stops positioned in the two substantially vertical elements and the inner frame having two substantially vertical elements that slide within the two substantially vertical elements of the outer frame such that when bottoms of the substantially vertical elements of the inner frame are in contact with the fixed stops, a lower crossbar between the substantially vertical elements of the inner frame is located above the two lower lateral supports and below the two top lateral supports.