Hardwick & Lee (Taylor Hardwick) did the offices of Florida Machine and Foundry, twice. The first office building was done in the mid/late 50's, then around the time when the Haydon Burns was going up, they build a twin (but more modern looking) building beside it and then connected the pair together with a curiously shaped concrete entranceway.
Was quite well preserved in '08 when I was there. Instantly recognizable as a T.H. project. I have pics, somewhere..........