| 摘要 |
An information bearing assembly comprises at least two cards each bearing informational indicia on both their front and rear faces. The cards are pivoted together via a pivot connection between the center of the lower edge of the first card and the center of the upper edge of the second card, so that they can be swiveled between a storage position in which they overlap in face to face engagement, and an open position in which the second card is swiveled down relative to the first card until the opposite side edges are aligned and the information carried on the cards forms a continuous vertical column or sequence on both faces of the resultant assembly.
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