The ornamental design for a self-centering mobile adapted to display photographs vertically and/or horizontally off an arc armature, as shown and described.
The view is a perspective view of a self centering mobile adapted to display photographs vertically and/or horizontally off an arc armature, showing my new design.
Claimed is a design for a self-centering mobile adapted to display photographs vertically and/or horizontally off an arc armature comprising three interchangeable portions: one or more mobile portions, an arc armature portion and a supporting structure portion.