SN 2048473. Lens is in an good condition. Even though lens glass has little bit of fungus growth. Fungus is around the edges, and close to the rim, so it is out of frame and does not show up in pictures. Lens shows light wear on exterior. Filter rim looks good and it accepts filters. Front Glass does not have any visible scratches. But, again, lens has some fungus webbing inside. Performance: Lens has no known issues. Focus works good. Aperture works well as well. Lens looks and works well. Shipping is free within USA and $15 via USPS first class air mail service worldwide. You can choose faster (and more expensive ) shipping if desired during checkout. It will be mailed as pictured with both caps. Lens is sold with one month warranty.