One of the planners here was going through a filing cabinet, where he discovered someting very interesting sitting at the bottom. It was a hardcover copy of Daniel Burnham's Plan for Chicago. . Glued to the inside cover were newspaper articles about development in Chicago from 1917.
The fist page is signed "Mr Alex Friend, 137 E 50th St, Chicago".
Several pages in, there is a sheet that reads:
"One Thousand six hundred and fifty copies of this edition were printed in June, nineteen hundred and nine, of which this is numbered (penned) 1096"
Holy s**t. This isn't a modern reprint. It's an original, first run copy of the Burnham Plan, and it's sitting on my desk now.