I have a few B&J as some have excellent GG backs, not all

http://camera-wiki.org/wiki/Burke_%2...x5_Speed_Press

They are aluminum, don't really wear, they can, but takes a lot of work

GG is vented, a very good thing

They are IN Calibration a long time, so far 70 years

Here is their 1950's Press Camera, simple, it once had a rangefinder, the seller told me that made it heavy...so he threw out those parts...

IMG-0909 by TIN CAN COLLEGE, on Flickr

IMG-0907 by TIN CAN COLLEGE, on Flickr

IMG-0906 by TIN CAN COLLEGE, on Flickr

IMG-0909 by TIN CAN COLLEGE, on Flickr