The present invention is directed to a portable, adjustable vertical work holder device. Characters may also be displayed in response to failure to insert coins for a period of time or at a given rate. A virtual illumination equation takes into account light attenuation, lambertian and specular reflection. In addition, a magnet sheet may be pasted as a pasting member. A second control unit is included and adapted to limit, in respect of the duration of its effect, a rejection of the user identity module expressed by the locally available wireless data networks in logging on to the wireless data network by suitable control of the first control unit in the further course of the log-on process by bypassing communicated information about the rejection. The blank has an internal dimension, a length, and a pair of breast cup defined therein.