Low-impact, functional art clocks have quartz mechanism and hanger. Dry-mounted poster board in 5” x 7,” 8” x 12” or 8” x 14.” Custom clocks available with your logo/photograph(s). Climate Clocks Images promote alternative energy and tell time fashionably. Historical Clocks Take a step back in time to something gone, to an architectural treasure or to an event in time, a historical moment. Seasons Clocks Seasons show soothing, natural landscapes around Boston. May be ordered as a series or separately.