Antique Books in German (Cambridge, Harvard Sq a)

A box of about two dozen antique books in German, published between 1855 and 1945. Complete works of Schiller, light verse, and other subjects. Some are printed in Gothic type face on thick paper, with leather binding. Seems like they are in good condition. I don't know if they have any value, or if they would be of interest to a rare book dealer. Could be used by an artist for collage or making altered books or something. I want to give them away thoughtfully to someone who will appreciate them in some way, so please tell me why you are interested if you respond. Must take all of them.