I developed this phase box design here in the conservation department of the Library Company in 1988, with assistance from Lillian Greenberg. In November 1990 I participated in a Mellon Advanced Workshop in Iowa with Pamela Spitzmueller. We participants were invited to present a short topic to the group during the course of the week, and I demonstrated this box. The response was very enthusiastic and I was encouraged to submit the design for publication in hopes of sharing with a wider audience.
The Corrugated Clamshell Box is constructed of one piece of acid-free corrugated board which is measured, cut, scored and folded to form a drop-spine style box which fits the book precisely. This can be made to hold books over 1 " thick, and it works very well for extra large and heavy books. Rare and fragile books need only be handled during the measuring to find length, width and thickness. The book is then set aside and the box dimensions are calculated. The box has no flaps or ties so it is convenient for our curators and reading room assistants to open and reclose while searching for titles in the stacks.
Figure 1. Pattern for box.
Materials: Acid-free corrugated board, 3 mm thick PVA
Tools: Mat knife (or equivalent)
Large triangle and ruler (metric) or Carpenter's square (metric)
Creaser or bone folder
Figure 2. Corner detail.
Timestamp: Sunday, 03-Mar-2013 21:37:20 PST
Retrieved: Thursday, 21-Feb-2019 15:27:59 GMT