[JoeC]

Yes it is a Mallory Double Life YC-310 HP. I didn't have it in a car. The end play is good. The points are still in it but they don't look like the are in good enough condition to be used. The rotor is missing and the cap should be replaced also. I believe you can still buy the cap, rotor, and points.
The nylon insulation pieces are all there which I see missing on some of them.
I am not sure what you mean about the fork? Is it visible without removing the points plate?
The Mallory Double Life I think got its name from the design of using 4 cam lobes to open the points instead of 8. This way each set of points do half the normal job so have double the life?