Carl Zeiss C Biogon T* 21mm F4.5 ZM Black Serial Number: 15605747 ◆ Disposing of my collection as part of a decluttering effort. Purchased new. Stored in a dehumidified storage box as part of my collection. Used infrequently, so the exterior is in good condition. ・Included Accessories Original box, instruction manual, proof of purchase, genuine front cap, genuine rear cap, protective filter. Everything in the photos is included. ・Please consider this item as used.