Working Nikon MD-12 motordrive  with the box. For Nikon FA, FM, FM2 FM3a, FE, FE2 cameras. Previously owned by the famous photographer Palmer H Slack. Luckily with the drive mounted no one will ever know. Tested on an FE and it works in single and continuous modes. The battery chamber is clean with no corrosion. The MD-12 is the later drive for these cameras so it's the one you want. The drive shows handling wear from normal usage.