Need help identifying Mallory distributor

[dickday0]

The tach cable that came with my '57 Tbird is the wrong one. It's way too long. I understand that there are two different cables, one standard and for the Mallory distributor. I'm not able to tell which distributor I have.

Can anyone tell me which one I have by looking at these images?

Thanks!

 

[dickday0]

Joe, at http://concoursparts.com/, was nice enough to look at these pictures, and he gave me the correct part number. I got it ordered and will be here this week.