My understanding is that any garnish rail with a flared end where it meets the dash is a 74 / 75 rail. The rails on my 72 and one that I removed from a 73 Targa are straight all the way down.
To the original poster, are you looking for Coupe or Targa door tops? The Targa door tops have an extra notch. The door tops in Techweenies picture are Coupe door tops.