G'day all.
I have recently won off Ebay a vintage Marconi BD851 B&W broadcast monitor which I believe were made to suit with Marconi MKIV cameras which first made their appearance the same year. This monitor is in excellent shape, fully intact and with hardly any dust at all and I believe it won't take too much to get it working.
Anyhow I have posted this thread in greater detail with pictures in the Television Broadcast Forum so those interested click here
http://videokarma.org/showthread.php?t=255527 .