Please identify Side Curtain rods

[midgetracer]

I have a collection of side curtain rods. Could someone please identify if these are Model A or some V8 and if they are 28-9 or 30-31. Thanks for looking

 

[alexiskai]

The overall length of a Model A side curtain rod was 17-7/8", except for the dlx roadster which was 17-1/4". The socket length (the shorter of the offset segments) was 2-3/4" for rods fitting the 35A, 40A, and 76A. For rods fitting the 35B, 40B, 76B, and dlx roadster, it was 3-1/8".

I didn't include the 180A rods in this because they're visually distinct and none of yours look like that.

 

[midgetracer]

Thank you Alexiskai. That is what I needed to know.