This is a reference to the arms of the Earls of Derby, the Stanleys. Sir Thomas Latham, one of the family's ancestors in the 14th Century, had an illegitimate son. He had the baby placed under a tree in which an eagle had built a nest. He then took his wife for a walk around the estate, and they "discovered" the infant. Sir Thomas persuaded his wife that they should adopt it. In spite of this successful ruse he left most of his riches to his daughter Isobel, who married Sir John Stanley. In this way the Stanley's inherited both the estate and the heraldic eagle and child. This sign comes from a pub in the town of Bury, Lancashire.
Eagle & Child (No. PS388). Dimensions: 48"H x 42.5"W x 5.5"D. Shipping: $120.