Step 9. The box with the requested book is raised by a dumbwaiter from the first mezzanine level to the Main Reading Room of the Central Library of the Free Library of Philadelphia

75th Anniversary

Step 8. Eventually the box with the requested book makes its way to the sixth level of the Bookstacks and across the first mezzanine floor to a point directly under the Main Reading Room of the Central Library of the Free Library of Philadelphia

75th Anniversary

Step 7. The box with the requested book winds its way through the Bookstacks toward the Main Reading Room of the Central Library of the Free Library of Philadelphia

75th Anniversary

Step 6. The book is placed in a box which will be transported to the Main Reading Room of the Central Library of the Free Library of Philadelphia

75th Anniversary