Preserving Pennsylvania’s Past While Building Its Future: Keystone Markers and New Women’s Sports Take the Spotlight
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Jack Graham—Executive Director with the Keystone Marker Trust—specializes in preserving Pennsylvania’s historic cast‑iron keystone markers, which once stood at entrances to towns and along bridges across the state. Beginning in the 1920s, the Pennsylvania Department of Highways installed these distinctive blue‑and‑gold markers at nearly every community large enough to have a post office. Although thousands once existed, only a small number remain today.
The Historical Society of Perry County is hosting Jack for a presentation on the markers’ history, significance, deterioration…
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