Noah Bells

Recently, I have received several catalogs that feature Noah bells.  Being the mother of a bell ringer, and being ignorant about this type of bell, I decided to investigate.  My short search yielded this from a feng shui website:

Rustic Noah bells are distinctive from all other bells due to the melodic and echoing tones.  Each bell is hand made in India.  The smelting of various metals and hand hewed clapper result in the individual tuning of each bell to create the unusual resonate sounds.  Shepherds prize the smaller bells, as they enable them to easily hear and find their flocks from many miles away.

Given that this is the season of Advent and that we will eventually see sheep and shepherds added to our Nativity scenes, I thought the latter part of that quote to be quite applicable.  In fact, it reminded me of the Christmas carol, "While Shepherds Watched," text from 1703:

While shepherds watched
Their flocks by night,
All seated on the ground.
The angel of the Lord came down
And glory shone around,
And glory shone around,
And glory shone around.

"Fear not," he said,
For mighty dread
Had seized their troubled minds.
"Glad tidings of great joy I bring
To you and all mankind,
To you and all mankind."

I also found this instructional video about Noah bells on YouTube:



I still haven't discovered why the bells carry the moniker, "Noah."  Any ideas?