Bookend support ANDCOM

A simple bookend support. The design is intended to be used in the frame of European Union Erasmus+ project "4.0 didactic approaches in duty of developing ANDragog’s COMpetences" (4.0 ANDCOM) that aims to increase visibility, awareness and the ability to use Industry 4.0 solutions in education of low-skilled adults. For more info, see https://andcom.erasmus.site/