SN 37611123. 

It comes with both end caps as pictured. 
Shipping is Free within USA and $25 via USPS first class mail worldwide. You can choose faster and more expensive shipping during checkout. 

Cosmetic condition:

Lens has been used. It shows light wear on exterior. But I don't see anything damaged. Filter rim looks good and it accepts filters. Front Glass does not have any visible scratches. Lens has couple tiny dust specs inside. No hazing or fungus. Glass is very clean. Lens looks very nice over all, very clean and bright glass. 

Performance:

All lenses features work good. Lens has been fully tested by my tech guys. Aperture blades are free of oil. Aperture is snappy. Focusing is smooth, without any play. I guaranty that it will arrive as described on your money back.