ASAHI PENTAX Super-Takumar F1.8 55mm lens, an M42 mount lens. There is no mold, and the aperture blades function without issue. The only included item is the lens itself. While I have checked the condition and operation, this is a private sale, so please understand that there may be oversights in the lens condition. Please only purchase if you accept this. Due to the specifications of Mercari's product registration, it is listed as a Pentax K mount, but the lens is an M42 mount. Also, in the unlikely event of a return, I will accept it if the buyer covers the shipping costs, so please feel assured.