Perhaps but there was zero color change. Given the splatting about and rough surfaces of the silver my thoughts are it got soft and was the main "failure" (other than myself).

I cleaned up my shop yesterday and discovered that I had left the soak tank heating coil (a "bucket heater" as found on farms) powered. The water had slowly evaporated, exposing the heater's hot portion and it burned out. A new replacement is now $65 plus shipping. But finally some good Karma, today's Facebook Marketplace had one new in box offered for $20. It is exactly the same model as the old one. Andy