Label Positioner (MkIII)

This is a VERY simple tool to help us correctly position a call number label (The little labels on the spine of library books with the Dewey decimal number on them).
To use simply place the bottom of the spine of the book on the inside of the tool so that your thumb is clamping the broad outer face of the tool to the front of the book. then use your free hand to place the label on the spine touching the top end of the tool. Voila! a correctly placed label. (Feel free to edit the file for your libraries specifications - our library puts the bottom of the label 1.5 inches up the spine, yours may differ.)