This is a beautiful reproduction of the business/phone card that Carter J. Burke hands Ripley in the film Aliens.
Burke still harbors the hope that Ripley will reverse her decision not to participate in a military expedition to LV-426 and use the card he gives her (just like the one offered here) to contact him. In fact, Ripley does have a change of heart and uses this device to videophone Burke and seal her fate.
The communication card is made of 1/8" (2.8 mm) thick clear acrylic with the letters and logo silk-screened onto the top surface. Here are the dimensions of the prop:
1.69" x 3.68" (4.30 cm x 9.35 cm)
The prop is no longer available.