Lightly used Performance Machine Billet "Array" Horn Cover for Harley Davidson Big Twins with the factory "Cow Bell" Horn cover.
Part number is 2107-0103, and was almost $300 when I purchased it.
Here's the info from Performance Machine on it:
Created with an eye on style, Performance Machine Horn Covers help you in your quest for your custom look. This CNC machined beauty is a replacement for the stock horn cover on your Harley-Davidson Big Twin motorcycle. With the PM logo on prominent display, you proudly declare your V-Twin as a Performance Machine.
• Showcasing the Performance Machine logo, the Array design family consists of a collection of six flaring rays emanating from the center
• Black with Machined finish starts with polished aluminum that has been black anodized then recut to accentuate the details, leaving the exposed aluminum in the raw machined state
• Made in the USA