vintage railroad paper lot

Description

i dont know anything about rail items. this lot is as follows.  1.  rock island lines contaminated card.  2.  chicago, rock island and pacific conductors cash fare receipt. early 1900's.  3.  chicago , rock island and pacific r.r. bridge inspection card.  4.  chicago, rock island coal ticket.  5.  rock island hospital ass. card.  6.  rock island line card. 7.  chicago, rock island and pacific  pass. cincinnati ohio and return. ticket.  8.  chicago, rock island ticket, 1000 mile.  9.  rock island one way coach ticket.  10.  chicago , rock island ticket, 1912,  11.  unknown rock island card.  12.  rock island weigh card.