What is this? (lens)

[thisismyname09]

I bought this for a dollar. Is there anything special about it? Or did I just buy some strange generic lens?

No shutter, and no aperature. f=210, f/5.6

 

[fotch]

Looks like a projector lens.

 

[Anscojohn]

I have something similar--only bigger. It is a lens made for a TV camera.

 

[Ian Grant]

It has the look of an early Tamron lens I have, but there are many lenses like that made for early CCTV camera's.

Ian

 

[Steve Goldstein]

It's Chinese. In the second picture, the two characters are "Jing Jiang", probably the company name. The characters in the third picture read "Sa Shi Camera Factory". Sa Shi is a small city in Hunan (?) Province. All the above according and thanks to my wife, who grew up in China.