Barker's copy of OD&D

"Men & Magic inside cover with Prof. Barker’s signature"

"As part of the process of cataloging Professor Barker’s vast collection of games and material related to Tekumel, we discovered Professor Barker’s copy of OD&D.  When we looked inside the covers, though, we discovered that Professor Barker not only signed the books but dated them as well."
http://blog.tekumelfoundation.org/2014/02/19/another-40th-anniversary-for-original-dd