Old texts on arches differentiate between British and French coursing in skew arches. The British used helical courses where each stone could fit anywhere, or the bricks could go in uncut, but the courses meet the edge at an angle off the right-angle. In the French system, the courses meet the edges at right angles at the expense of some very complex dressing of stone or even brick.
I have read many times about this "French" system, but never seen it. Thanks to an article by Brian George of PHEW in the latest SW newsletter of the ICE, I now find there is such a bridge only a mile from home. Of course I leapt on my bike and went off with my camera.
The photograph shows how complex these bridges are. This one seems to be a three centred arch with a skew of 51deg and spandrels slightly concave in plan and tilted inwards. The dressed stone voussoirs have beds normal to the edge. The brickwork is fiendishly complicated as you can see in this photo.
This might be compared with bridges where the coursing is actually parallel to the abutments. Something that can only really be achieved with good quality stone cut into long voussoirs. I will look out a picture and add it soon.