indorsement : Idioms & Phrases
Blank indorsement
(Law) , an indorsement which omits the name of the person in whose favor it is made; it is usually made by simply writing the name of the indorser on the back of the bill.
Webster 1913
Qualified indorsement
(Law) , an indorsement which modifies the liability of the indorser that would result from the general principles of law, but does not affect the negotiability of the instrument. Story.