Cooke 35-140mm Anamorphic Zoom FRONT ELEMENT only. This is a replacement part for a damaged front element. 

The original replacement cost for this front is approximately $7500 USD. 

See photos attached - there is a scratch and a small scuff on this element, it was replaced but it is still usable. The markings bore NO effect on the image. 

So if you have a 35-140 that has taken worse damage, this is a deal, a working front for a fraction of the original ordering price!

Here’s info as per online regarding the entirety of the lens itself:
The 35-140mm Anamorphic/I Zoom Lens is a 2x anamorphic squeeze zoom featuring the classic, natural yet sharp “Cooke look” in an anamorphic format. This wide to telephoto 4x zoom lens incorporates an 11-blade iris for cinematic-looking, 2:1 oval bokeh. Designed for use with both digital cinema and film cameras, the 35-140mm Anamorphic/i zoom covers image formats up to Super 35.