| 摘要 |
A display panel has a set of guides which in a preferred embodiment comprises a set of parallel track members upon each of which a plurality of riders are transported and frictionally held in place by means such as by a magnet. Thus, the riders may slide along the tracks singly or in a group and each rider may be removed in any position. Each rider includes a transparent pocket or envelope for receiving a document which displays the indicia or message. The pocket is hinged to the rider so that an internal folded document inserted into the pocket may be viewed from front and rear without removal of the document from the pocket.
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