How free text was read: "X-Men (1991) 1" is title X-Men, year 1991, number 1.
titlestringrequiredThe series title part, cleaned ("amazing spider-man").
numberstring or nullrequiredThe issue number, normalized ("300", "1.mu").
numberDisplaystring or nullrequiredThe issue number as typed.
yearinteger or nullrequiredvolumeinteger or nullrequiredkindenum or nullrequiredOne ofregularannualspecialone_shotgiant_sizeashcanpreviewfree_comic_book_dayunknown