This 1909 postcard image of the former Chambersburg High School shows the original building that is underneath the massive structure at the intersection of Queen and Third streets. (Submitted)

In a visual display to the planning commission, McKissick unveiled reproduction of a post card that showed the original 1909 school that was set back from Queen Street at the time.

Using an aerial photograph, he explained how the building that now fronts Queen Street was erected in 1930 and connecting structures were added in 1958 to complete what now looks like a monolith from the outside, but it actually three separate building phases.

via Reuse plan promises to uncover hidden 1909 school in Chambersburg – Chambersburg Public Opinion.