Who is Damu Anna, as introduced in Chapter 25?

According to Chapter 25, Damu Anna is introduced as a well-to-do person and a wealthy Kasar (bronze-smith) from Ahmednagar. He is described as a devotee who was devoted to Sai's feet. The chapter presents his story as an example that shows Sai's profound love for his devotees. The text promises that by listening to the story of this great devotee, one's heart will be filled with joy and one will understand how the Guru-Mother is an 'Ocean of Mercy.' His story is meant to illustrate how Sai wards off the misfortunes of those with one-pointed faith.