| 摘要 |
<p>The invention relates to a postcard (1) provided with an incorporated viewing device (2) equipped for stereoscopic observation of at least one predetermined image, wherein the viewing device (2) can be separated from the card (1). The viewing device (2) is embodied as spectacles that are detachable from the card (1), having temple arms (4, 5) that can be folded out so as to render the viewing device (2) suitable for handsfree observation of the at least one image.</p> |
