Visitors to the The National Iron & Steel Heritage Museum can enjoy an open house weekend, Dec. 9 & 10. COATESVILLE — The National Iron & Steel Heritage Museum will be holding a holiday-themed Open House weekend, Dec. 9 & 10 at the museum. On Dec. 9, the museum will offer a Manion Strolls program, allowing folks to stroll through candle lit grounds, enjoy holiday refreshments,...