Built by the Reading shops in 1918 for the Philadelphia and Reading Railroad #1251 was pieced together with parts from a previous 2-8-0 consolidation. She was well liked by crews and served for 45 years performing switching duties at the Reading shops. Upon her retirement from the Reading in 1963 #1251 was used for a short time pulling passenger excursions on the Maryland and Pennsylvania RR before being acquired by the Pennsylvania Historical and Museum Commission in 1968. #1251 is now preserved and on display at The Railroad Museum of Pennsylvania.