This post is confusing two different columns.
One is the column with St George slaying the dragon on. This sculpture was made out of wood and plaster for the coronation of George VI and was erected in Victoria Square. The following year it was moved next to the Hall of Memory for the city's Centenary celebrations. The sculptor was Alan Bridgewater.
The Birmingham Civic Society proposed a pemanent version in stone, on the island that used to be at the top of New Street, but sadly the outbreak of WWII saw that it was never realised.
The other column, shown in the plan for the new Civic Centre was the "Spirit of Birmingham" which was to be a bronze man in art deco style at the top of a column and who would have been the centrepiece of the cevic centre. The Birmingham Civic Society commissioned William Bloye to sculpt the work.
There is a model of the proposed civic centre in the Art Gallery.
Details of the Spirit of Birmingham from the PMSA (Public Monuments & Sculpture Association):
Although a statue on a column symbolising the spirit of Birmingham appears to have been included in a model of the Civic Centre as early as 1934, (1) it was as part of the celebrations to mark the coronation of King George VI in 1937 that Bloye was first commissioned by the Civic Society (2) to make a nude figure of a young smith, similar in appearance to Industry, the Supporter on the City Coat of Arms. (3) In 1938, under a project for the beautification of the city to celebrate the centenary of the granting of the Charter of Incorporation, a permanent statue was envisaged for the Civic Centre and the Civic Society gave £1500 to the Corporation for this purpose. (4) Postponed until 1948 due to the War, Bloye then produced a model 76 cms. high, and then a quarter size model in clay, approved by the General Purposes Committee. It was forecast that the full-size model would be ready by July 1951, and the bronze cast a year later, but the total estimated cost for the 140ft column and statue reached £43,520 and so the proposal, initially postponed for a year, was never completed. (5)
Just shows that it's not only what we lost in the war, but also what we lost out on...