The invention is summarized as mobile storage system for weapons and weapon accessories. A second lens group has a plurality of lenses corresponding to the lenses of the first lens group, the second lens group stacked below the first lens group and interposing a spacer part therebetween. The presence service may provide access to the spatial location information to one or more location based services either openly or confidentially by hiding the user’s identity and other information. After an insert has been placed inside the printed material, it is delivered to a stacker and jackets with insert errors are automatically returned to the conveyor. When the electronic toll payment pass is attached to the mounting structure, the mounting structure is interposed between the glass of the windshield and the electronic toll payment pass.