Campaigners are asking when the iconic coronation lamppost will return to Lord Street.
The lamps were removed months ago by Sefton Council who said they are refurbishing the lampposts and putting them back soon.
However conservation campaigners have asked OTS to launch an investigation after the lamps never returned.
Surveys of all three coronation columns, which were erected along the main boulevard in 1953 to mark the coronation of Queen Elizabeth II, have found signs of considerable structural wear and tear.
The lamps were removed but now campaigners are asking what has happened to them after they were never seen again.
The council promised commemorative coronation lanterns, which adorn the top of the columns, will be retained and restored by the local authority ahead of them being reinstated on new columns.
But that has proved to be another false dawn.