Dun Laoghaire Harbour's anemometer pylon has been refurbished, and work is underway this week on its reinstallation at the town's East Pier.
Eagle-eyed observers spotted its removal in late January, and this week, the structure arrived back on site for erection.
The pylon sits atop a small, smooth granite building set into the east pier's stone wall, which houses the anemometer.
The device measures wind speed and direction and has provided valuable information to sailors, contributing to sea safety for nearly 200 years.
The anemometer pylon returns in June 2024 after refurbishment works
Carved in the stone, above the small wooden door, is the Greek word Anemois, which refers to Greek wind gods.
It was built in 1852 and is reported to have been one of the first such weather stations in the world, relaying important weather information to mariners.
The anemometer works are only the latest in an upgrade for the historic piers, the largest protected structures in Ireland, by Dun Laoghaire Rathdown County Council.
As Afloat reported in June 2023, the €2M repair project to Dun Laoghaire's East Pier Revetment (the concrete slope behind the East Pier) has been completed.
As Afloat reported previously, this important repair scheme to the 200-year-old harbour was funded by the Brexit Adjustment Local Authority Marine Infrastructure Scheme 2022-2023.