sentences:  This station was rebuilt to a design by architect Charles P. Rawson when the tracks between Wilson and Howard were elevated onto an embankment in 1921 – the name was changed to "Bryn Mawr" soon after.The station was extensively renovated in 1974, and an escalator was added.In 2006, the signage at Bryn Mawr was replaced, and three-sided pylons which display maps and schedules were installed in the station house and on the platform.