There was no System 7.2 or 7.3.5. They went from 7.1.2 to 7.5. You may be thinking of 7.1.2 (the first PowerPC release) or 7.5.3 (the last full version posted a

There was no System 7.2 or 7.3.5. They went from 7.1.2 to 7.5. You may be thinking of 7.1.2 (the first PowerPC release) or 7.5.3 (the last full version posted as a free download).