Abstract: An advertisement frame into which poster advertisements can be inserted is attached to the rear or side of a semitrailer. The advertisement frame includes a unitary main frame portion, a plexiglass protective cover and a roller assembly. The roller assembly is mounted at the bottom of the main frame and constitutes a mechanism for feeding and removing posters into and from the frame.

Abstract: A scrolling display device for fan-folded printout paper has a housing with two upstanding sides, an internal paper shelf overlying a paper storage bin, a slanting easel display plane panel pivotally mounted at the forward edge of the shelf with idler rollers along its upper edge and idler pinch rolls supported by its rear face; a capstan roller driven by a variable speed reversible drive engages the idler pinch rolls to advance the upfolded sheet drawn from the storage bin up and over the panel to descend behind the panel for re-fan-folded storage on the shelf.