PURPOSE: To use a small case as a storage case for an appendix by setting up a constitution of sorting the appendix in the state of being stored in the small case when the appendix is taken out of a mount.

CONSTITUTION: A mount is composed of an intermediate frame with a window 2a in which an appendix is inserted and interposed, skeleton frames for covering the appendix overlappingly bonded on the surface and rear face of the intermediate frame and punching lines 5, parts of which are connected between edges facing each other close to one side of the window 2a and remaining sections of which are provided with edges of small width around the window 2a, formed in a manner of encircling respective frames in the shape of endless frames.