Looks like light glue on the surface of the back cover along edge, as shown, otherwise very good++.
1910 Print Ad - Chicago & Eastern Illinois Railroad Music Conservatory Chicago
Chicago & Eastern Illinois Railroad Annual Report - Lot of 3 - 1908, 09 & 13
Vintage Chicago & Eastern Illinois Railroad Metal Decal Set Of 3 C & E I
RARE BRASS TOP RAILROAD LANTERN W/EMB.(C&E.I.RR)CHICAGO & EASTERN ILLINOIS GLOBE
Engineer/Conductor Cap/Hat-Chicago & Eastern ILL(CEI)-adjustable-Adult or Child
Chicago & Eastern Illinois Ry. Public Timetables June 1960
