I've noticed that in Southeast Pennsylvania, there are these weird looking Durasigs. Typically they're found in the vicinity of Abington Township, typically around Glenside, hence the nickname I gave them; "Glenside style" Durasigs.
They have aluminum Siemens visors unlike the standard ones. These were mostly installed sometime between the time that they discontinued the 2nd gen ones with the black ring around the lenses and the third generation ones.
Here are several intersections that have them:
https://www.google.com/maps/place/New+Vision+Youth+%26+Community/@40.1042768,-75.1645017,3a,75y,84.45h,94.54t/data=!3m6!1e1!3m4!1sN0ENmg5URxJRdvzI5nH5XQ!2e0!7i16384!8i8192!4m13!1m7!3m6!1s0x89c6ba0ab2d8cf81:0xc03bc345ceabce59!2sEaston+Rd+%26+E+Waverly+Rd,+Glenside,+PA+19038!3b1!8m2!3d40.098642!4d-75.1554277!3m4!1s0x89c6ba71eae9e445:0x300eab4594312819!8m2!3d40.1062977!4d-75.1646793
https://www.google.com/maps/@40.1079437,-75.1635287,3a,75y,44.36h,94.65t/data=!3m6!1e1!3m4!1sBd7Fp-WTlJwmNE7LllRoNQ!2e0!7i16384!8i8192
https://www.google.com/maps/@40.1134253,-75.1526764,3a,75y,219.8h,107.71t/data=!3m7!1e1!3m5!1sNYvzUN-_1McYBW-8gAtc8Q!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DNYvzUN-_1McYBW-8gAtc8Q%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D122.48542%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192
https://www.google.com/maps/@40.1326352,-75.1528154,3a,75y,168.98h,91.66t/data=!3m7!1e1!3m5!1sCu1fBq_w1vQ_Do42Jtgt_A!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DCu1fBq_w1vQ_Do42Jtgt_A%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D75.68352%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192
"The corner of Fitzwatertown and Susquehanna" has to be the most long-winded pair of street names I've seen. It's almost certainly the longest pair of one-word street names I've ever seen.