Link 103 Television Camera
The Viewfinder
is particularly bad on this camera. The patterning shown is the worst
case I have seen of the failure the seal between the tube and the bonded
(or perhaps not bonded) flat glass faceplate.
Many otherwise good viewfinder
tubes, from that period suffer a similar fate. It is hard to do much about
it. Later tubes from the same manufacturer do not have the problem.