Bowl Number One by Jung Jum Gyo is the pricey piece. It displays many characteristics of an excellent chawan.
Firstly, the way in which the glaze sits on the bowl is absolutely beautiful. It is an excellent example of the method of applying glaze in drizzled little blobs wherein the clay underneath can peek through. This technique looks simple but is actually quite hard to master. One can best see this artistic element near the foot of the chawan where bloby glaze just barely covers the clay beneath.