Another area where there has been a great improvement over the years is calligraphy carving. This is 1988 compared with a few years later ...

The difference? Aside from the obvious 'chips' here and there on the older print, it is that the curves on the lettering on that one were carved in 'steps', with the knife pausing as it moved around each curve. As the years have gone by, my wrist has become much more flexible and can move around the curves without quite so many jumps and breaks.