As a part of the Town of Greeneville’s “Back to Depot” celebration a street clock donated by the Greeneville Rotary Club will be unveiled on West Depot Street on Saturday.The celebration marks the completion of the West Depot section of the town’s Depot Street revitalization project.The clock, mounted on a post in the sidewalk near the middle of the block of West Depot Street between Irish and Main streets, is meant as a gift to the community from the Greeneville Rotary Club and to mark the club’s 100 years of service to the local community.