When his wife was pregnant with their first child, dad-to-be hatched a plan whose reward wouldn’t materialize for years. He created a secret room of treasures in their unborn daughter’s nursery wall and sealed it up. The little girl grew up in that room without a clue about what was in her walls. Seven years passed, and dad finally got his chance. When she asked for pocket money, he told her to clean out an old window box. She opened the window box and discovered it wasn’t empty at all. In fact, pulled out a collection of strange brass items. Realizing it was…