Hannie,
See if this is it, has a part number on it of 88021014330. A little surface rust from sitting in a plastic bag for 25 years, but it will clean up.
You sure your not missing one of the points at the bottom? I have two of the same ones as in the pic in another bag if you want a pair. Part number shows as applicable from 440evl to 660evl; http://www.ereplacementparts.com/spike-p-542012.html