The linked pics are the front and back of a newspaper archive photo of a medical color TV system at "St.Lukes's Hospital" dated 1957.
Unfortunately, I don't know what newspaper or city, and haven't found the article on newspapers.com.

The gear does not look like the CBS/Smith Kline French gear, and besides, by 1957 SKF had RCA/NTSC gear. The gear also doesn't look like the RCA gear available in 1957, and is likely too small to be an NTSC three tube camera, but is almost surely field-sequential.

Could this be a last gasp of General Electric field sequential color?

Can anyone identify it more surely?

https://live.staticflickr.com/65535/52332184048_1e14ac8307_3k.jpg

https://live.staticflickr.com/65535/52332246479_9f176ab70f_b.jpg

Zenith was big in CCTV in the operating room before consumer color TV.
Nothing in the pix for clues though. Just a pix of the TV wouldnt help
since the usual brand giveaways (channel knobs, cabinet ) wont be there.
IIRC they had a part in inventing the defibrillator also.

73 Zeno:smoke:
LFOD !

Zenith made console monitors for the CBS system, but I don't believe they had anything to do with the cameras.

ISTR reading that medical CCTV was field sequential until 1958, then they converted to NTSC.

The ETF has a field sequential camera similar to that one.

ISTR reading that medical CCTV was field sequential until 1958, then they converted to NTSC.

The ETF has a field sequential camera similar to that one.

Maybe true for SKF, have to doublecheck, but this one supposedly is a permanent installation and doesn't look like the SKF gear.