Four-aspect dwarf signal on Harrisburg bridge

[signalmaintainer]

Anyone familiar with the four-aspect dwarf signal at the east end, Track 2, on the old Philadelphia & Reading bridge in Harrisburg?

Anyone know what all four aspects are?

[Tristan Ashcroft]

Anyone familiar with the four-aspect dwarf signal at the east end, Track 2, on the old Philadelphia & Reading bridge in Harrisburg?

Anyone know what all four aspects are?

stop, good luck, hahaha, and never?

(I don't actually know...)

[John]

Anyone familiar with the four-aspect dwarf signal at the east end, Track 2, on the old Philadelphia & Reading bridge in Harrisburg?

Anyone know what all four aspects are?

I'd contact Jerry Britton .. https://www.facebook.com/prrmiddledivision/   He probably knows .

[Point353]

Probably slow clear, slow approach, restricting and stop.
https://signals.jovet.net/rules/PRR%20Signal%20Rules.pdf

[signalmaintainer]

Probably slow clear, slow approach, restricting and stop.
https://signals.jovet.net/rules/PRR%20Signal%20Rules.pdf

That's what some of us are thinking. Lenses top to bottom of G/Y/Y/R. Two yellow aspects may seem redundant (why not just one with the yellow lighting control circuit wired to flash or not flash depending on the situation), but I have seen three-aspect colorlight signal heads with two yellows.