key blanks - Price: neg in Rochester, Illinois

i have a collection of blank keys that are consisted of: automotive from the xxxxs to xxxxs......skeleton keys.....old cash register keys....flat steel keys.....master key sets.....original Corbin blanks.....also original ilco blanks.....ilco catalogs from the 30s.......new york Keil catalog from September 10th xxxx.......and much more.   Approximately xxxx plus of blank keys to select from.    I am not sure of the value of these blank keys, but I am willing to negotciate a very fair price on these items.