The annual update from Mr. Tsutsumi
It is that time of the year again: dear Mr. Hiroyuki Tsutsumi from Japan every year sends us a picture of how the surface and patina of his Sögreni Bell in copper is developing. This is the status now, after around five years or so from being manufactured. Thank you so much for sharing Mr. Tsutsumi. If you search the blog you will find earlier entries on the subject.