Check book holder having master check

Claim 1

The combination comprising: a. a check book holder having two essentially flat portions which are foldable relative to one another along a hinge line, each flat portion having a surface which faces inwardly when the holder is in its folded position one of said flat portions having a pocket formed therein having a transparent window at its inwardly facing surface; b. a book of separately detachable, personalized, negotiable, blank checks mounted at one of said inwardly facing surfaces of said holder opposite said pocket and facing outwardly therefrom, each check having a check form printed thereon including a signature line and including the name and address of a person authorized to sign said checks; and c. a master check inserted in said pocket of said holder, facing outwardly therefrom and visible through said window, said master check having indicia printed thereon substantially identical to said blank checks, identically aligned, and vertically spaced therefrom, said master check differing from said negotiable blank checks in that said master check additionally has a picture fixed thereon of a person authorized to sign said negotiable blank checks whereas said blank checks do not carry said picture; wherein said holder may be folded to an open position and one of said checks and said master check simultaneously viewed and compared.