ACT Policing are investigating an incident of property damage in Civic on Saturday night (August 27).
Around 10.40pm, two men damaged the On the Staircase sculpture, which is located in public space at Petrie Plaza, near the David Jones store.
The value of damage to the sculpture is not known.
Both males are described as Caucasian, with one wearing jeans, a blue T-shirt with a black motif, white sneakers with a blue stripe, and a black beanie.
The other man was wearing jeans, white shoes and a white T-shirt with a motif on the front. The men were last seen walking towards the merry-go-round in Petrie Plaza.
Anyone who may have witnessed the offence on Saturday night, or recognises the two men from the description and images, is urged to contact Crime Stoppers on 1800 333 000 or report via the Crime Stoppers website on www.act.crimestoppers.com.au. Information can be provided anonymously.