From the Garrat Yahoo group:
Date: 22/07/1991
Location: passing Livingstone Locoshed
Tour Operator: ThSS? (Train was from and back to Victoria Falls, with a visit the Livingstone Locoshed and Railway Museum thrown in).
Loco: NRZ 20th Class 730 (ex 705)
Dumped loco in foreground: 20th Class 712