Helmhammerhand

Helmhammerhand is a Dwarf who is renowned for his ability to blow a great and mighty horn at times of great change afecting the lives of many.

He is employed by Sir Harry King to sound the shift-change horn at his recycling works, Rimwards of the River Gate.

Annotation

Almost too easy, isn't it...

Helm the Hammerhand, King of Rohan, lodged his mighty horn in the citadel of Helm's Deep, where it would only ever be blown in times of great change and need for the nation of Rohan...