| 摘要 |
In a preferred embodiment, a locket portably suitable to be worn on a chain or cord around a person's neck, opens as a base and lid, of which the base supports the pivotally opening lid and also from within space thereof a microfilm support carrying removable, replaceable and disposable transparent plastic-encased microfilm viewable in magnification through a replaceable plastic magnifying glass wedge-mounted in the wall of the lid, the microfilm support being a short frame circumscribing a through space across which the microfilm is mounted, the microfilm transparent casing being stepped at its base and being mounted slidably into an insertion-slot space, and the frame being inexpensively a single structure formed into a hinge and mounting slot spring-biased outwardly to a viewing state and position from a compacted collapsed storage position down-position at which the lid is closed upon the base to form enclosure space storing the microfilm mounted on the microfilm support.
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