Sadly Peter Dechert, author of the "Canon Rangefinder Cameras 1933-68" book and camera historian extradinare (author of many camera books and articles)
passed November 22, 2016 in Santa Fe, New Mexico.
You will find two fine articles published in the Santa Fe New Mexican
Peter truly was a gentleman and a scholar. Few knew as much about cameras in the 20th Century as Peter.
He was one of the giants of the photography world.