Wooden box with hinged front panel, decorated with collage of logarithmic table, mathematics text and col. ill. Includes drawing by Robert Jean Ray. Signed by the artists: "WELCH 2005" and "R, 2005".
16 leaves. Publication information from 23 Sandy Gallery website: Photography, drawings and collages with text (some text on panels and plastic strips); boards covered in black cloth, sewn together with red string in accordion-fold format.