@James? @RRK?

 Not true Dor !! Look at the photo I linked !! https://www.lighting-gallery.net/gallery/displayimage.php?pos=-163544  GE called that lamp an E-37 back in 1970 , It looks no different from the 2003 400w GE lamps I have which the 2003 catalog lists as ED-37 ! . As I stated before , The designation changed between 1993 and 1996 . The lamps all look identical !!

 That's what I thought ! I'd assume that would make them kinda rare . They could even be 120v !

E is elliptical without a dimple, and ED is elliptical with a dimple.

I see what looks like a PC on the center one.

 I highly doubt we'll ever get a straight answer . 

PowerGlows at a former Marlette mobile home dealership.  I don't think these have seen power since the 80s.

https://maps.app.goo.gl/VQoeM9vxyEhL9gap7

 Looks like they might have P/Cs on them

A dangling 1st Generation (Flat Bottom) Westinghouse OV-25 in Morton, TX. The refractor, reflector, and lens are gone, exposing the socket and ballast from the upper housing.

https://www.google.com/maps/@33.7270287,-102.7592095,3a,15y,57.33h,95.63t/data=!3m8!1e1!3m6!1s6l7obgTR3eWSWABx548PzA!2e0!5s20130301T000000!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D-5.632944148939899%26panoid%3D6l7obgTR3eWSWABx548PzA%26yaw%3D57.333883606559866!7i13312!8i6656?entry=ttu&g_ep=EgoyMDI1MTIwOS4wIKXMDSoASAFQAw%3D%3D

 Been gone since atleast 2018 .

 I had 2 over merdium eggs on waffles for breakfast today . Quick , easy and tasty ! 

PowerGlows at a former Marlette mobile home dealership.  I don't think these have seen power since the 80s.

https://maps.app.goo.gl/VQoeM9vxyEhL9gap7