Sometimes I pick an unfamiliar block semi-randomly and divert to it on my way home from work to look for sidewalk stamps. This time I picked Downer Street between Woodruff and Hopkins. There wasn’t much of interest there, but I did find this driveway on the west side of the street. It has a year, 1975, stamped in each corner, but no contractor name. There is a matching driveway stamped with the same date in the corners on Elizabeth Street, undoubtedly the work of the same anonymous contractor.