No idea about the 70, but this is a 71. The handle is a "T" , not a ball. The 72-3 had a round shaft, not flat as you see here. I did find that the lower reproduction rubber boot does NOT fit the 71, so there could be other small differences. I'm not sure what you're really after here, so hope this helps.
Geoff.
Edit: should have said 1970 lower rubber boot did not fit the 71.