Carnegie Library warned in 1991 to move rare books to libraries with tighter security, better climate control -- but never did; Pittsburgh Post-Gazette, April 4, 2018

Marylynne Pitz, Pittsburgh Post-Gazette; Carnegie Library warned in 1991 to move rare books to libraries with tighter security, better climate control -- but never did

"In 1991, two rare book appraisers alerted Carnegie Library of Pittsburgh leaders that its valuable collection of centuries-old maps and rare books would be much safer and better preserved in more secure, nearby research libraries, either at the University of Pittsburgh or Carnegie Mellon University.

The collection was never moved."