Can you provide a detailed account of the story of Damu Anna as described in the Shri Sai Satcharitra?

The story of Damu Anna, a great devotee of Sai Baba, is presented as a testament to Sai's love and readiness to protect His followers. As recounted in Chapter 25, Damu Anna was a well-to-do and wealthy bronze-smith (Kasar) from Ahmednagar who was deeply devoted to Sai's feet. His significant trial was that despite having two wives, he remained childless for a long time. However, by receiving Sai Baba's divine blessings, he was eventually blessed with sons. This narrative illustrates the principle that once a devotee establishes one-pointed faith, Sai wards off their misfortunes, grants their desired objects, and removes their suffering. The story, though brief, is described as being very pure in its meaning and shows how the Guru-Mother is an 'Ocean of Mercy.'