Ah....5H-MRK (another one I remember well!) Both the Air Tanzania 737-200's had heavy checks at LTN that year. There were no fancy stick-on graphics in those days...(an artist came in and painted the Giraffe's freehand!)
Here it is after being washed prior to starting the check......I've got a lot of LTN pics going back this far (must get them sorted and scanned sometime!)