A compass of Double Inverse Parallelogram.
A second similar inverse parallelogram is connected to the first.
Similar ratio is 2.
The long bars of the first (big) are the left pink bar and the green bar.
The long bars of the second (small) are the right blue bar and the yellow ground bar.
The pink bars turn in opposite directions with the same velocity.
This mechanism can be used for the inverse transmission with limited rotation angle between two opposite coaxial shafts.