Abstract: A photographic mounting system correlates photographs with height by providing a vertically mountable ruler configured to adjustably receive and hold photograph frames at various adjustably selected heights on the ruler. The frames, in turn, hold the photographs, thus allowing placement of the photographs at selected heights on the ruler. Various locking mechanisms are disclosed to secure the frames to the ruler and prevent inadvertent or unauthorized removal. Also disclosed is a virtual equivalent of the physical system, the virtual equivalent having a greater variety of possible modifications and a greater amount of information linked to various growth indicia.