Identifying mystery springs

[dz187]

I got these used, supposedly they give a 2" drop. Anyone have any idea on the manufacturer and their true drop?

 

[Humboldt5.0]

The springs on the right are progressive rate,so they are a drop in ride due to the agressive rate, height im not sure how much drop but at least an inch.

 

[Fast63]

I think eibach springs are usually that color but I don't know for sure

 

[ttop88]

My eibachs are metallic blue. My guess would be jamex. I have had 2 sets. one was 1.5"drop other was 2" both were red. They give up handling for comfort if that is what they are.