In case you don't know the exact name of this display, it will help in your searches to know that it is a "Macintosh Color Display." That's the actual name printed on the back of this monitor.

http://en.wikipedia.org/wiki/Macintosh_Color_Display

Though in the image you posted it is displaying only black and white, this is a color Sony Trinitron monitor.

A similar, older monitor is the AppleColor High-Resolution Monitor:

http://en.wikipedia.org/wiki/AppleColor_High-Resolution_RGB_Monitor

This one does not have a swivel base, though I believe one was made as a now unobtanium add-on option.

And finally, Apple made one of these with speakers, a microphone, and unlimited feature creep:

http://en.wikipedia.org/wiki/Apple_AudioVision_14_Display

The AudioVision requires a special breakout adapter unless it is used on a Power Macintosh / Performa / WGS x1xx (except 9150).