No big whoop though my curiosity has me wondering why the left diamond is on a horizontal plane whilst the right side is vertical, in relation to the orientation of the S&W trademark, on this I frame set of MOP.

I have a set of well worn K-frame magnas w/gold medallions and the diamonds appear square unable to favour 90* direction. Granted the engraving isn't nearly as fluid or articulate either, but it is the only other example I have on hand.

Was it a time period, model number or both occurrence?