Unknown. No maker of stream markers has been determined.
One of many found in PennDot storage yard. Fortunately this one was largely intact. Repaired and restored by Chalmers and Kubeck of Aston PA; repainted by JGl. Reinstalled by PennDot as part of a bridge replacement project.
2012 photo by J. Graham of marker as found.
2013 photo by JGl shows marker under restoration
2013 photo by JGl after repainting
2014 photo by JGl of reinstalled marker.
PA Route 116 east of Gettysburg
Typical double-sided stream marker on top mount post