Power Brake Linkage

[VCODE]

I could use some help. Does anyone know what these power brake linkages are for. I'm pretty sure E body but not 100% sure on the application or years.
The top one has CW stamped on it and the rod has a # 2N on it and has larger rod end
The bottom one has no letters stamped on it and the rod has a # 1N on it and has a smaller rod end
Thanks Bob

[B5fourspeed]

If you look at Brewer's web site they will have pictures of the different linkages.I think yours is from an E Body.

[VCODE]

Thanks B5, a little hard to see them good in there pictures. I do know that the 70 only has a groove for the anti rattle spring on the rod, 71-74 does not have the spring they must have done away with it. I gives me a place to start. WOW did not think they where that much.
Bob