Pulse Amplifier?

We recently had a request from John Romanowski for help in identifying an old pieces of equipment

He believes these were produced by Marconi, possibly Marconi Marine, and subsequently used in movie props made during the 1970s and 80s, which John and a group of hobbyists are trying to recreate using authentic pieces.

It is thought that the pieces which are shown originated from a video pulse amplifier strip from a radar set operating at about 30MHz.

If anyone has any information on this equipment we would be very glad to hear from you.