Power steering retrofit 1967 Dart

existing pump is a Saginaw out of a 72 Dart but we'll probably install a new rebuilt pump, so could use a Federal like in the pictures above. What is the third type???.

I think that I will post a want ad for brackets for an iron pump set up. Can somebody tell me what years they used that pump on? I assume it stared in 1964 with the introduction of the 273 and I know that they changed by 1970, but not sure exactly when.