Identify the lights?

Skulldigger

Site Guru
Blue lights on the PD car. Sireno? Sure look like flat top domes. Would be 1970's.


1970s DeKalb.JPG


Are those Unity domes? Looks like vertical clear lines faintly visible.

1970s DeKalb 3.JPG
 

dmathieu

Premium Member
Lines are camera/picture anomalies/defects. There are lines on the speaker too. Unity domes would not fit those lights, and the lines are at different heights on the domes.
In the top pic, the shape of the domes look like Signal Stat, to me.
 

cmb56

Member
I would say Signal-Stat 374 on the first photo. You have a conical base with a straight topped lens and four sealed beams that, for me, indicate Signal-Stat 374.

On the second photo you have a light with a rounded base and a rounded top lens with four large sealed beams that look like Unity RV-46 with Spitfire lens but I think its a ”mirage”.
The clear lines in the lens are on the wrong positions to be a Spitfire lens and I will say, as dmathieu says, that they are some type of optical effect on the bad photo.
The rounded base is shorter than on Unity and the sealed beams look like PAR46 but I think it is the metal lamp holder that make them look like that so they are most probably PAR36 ones.
I would guess that the light is Dietz 211/7-11.

9C8FB0C9-7B0F-4E09-AB67-9D365D214B2C.jpeg

Unity RV-45 with blue Spitfire lens.
The base is higher than on the photo and the lines sits higher up.

Michael
 

cmb56

Member
When I say rounded top lens on the second photo I think that it also is an optical effect on this very bad quality photo.
It is probably a straight topped lens.

Michael
 

cmb56

Member
If the light on the second photo is Dietz it should mean 7-11 made after 1980 due to the darker blue colour.
Pre 1980 had a lighter blue colour.

Michael
 

Mars Light

Member
Top pic: In my opinion it is a Signal Stat 374. the flat dome top is a unique sign. All other domes are rounder and the FS 184 has an other base.
 
OP
OP
Skulldigger

Skulldigger

Site Guru
But doesn't SigStat use Stratolite domes? Those are not flat? the only flat dome I know of is Sireno. Stratolite is slightly rounded, where Dietz almost comes to a point.
 

ex416

Member
But doesn't SigStat use Stratolite domes? Those are not flat? the only flat dome I know of is Sireno. Stratolite is slightly rounded, where Dietz almost comes to a point.
Signal Stat had their own domes. the model 370 and 374 beacons used #375 domes that were flat on top.
 
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cmb56

Member
Signal-Stat used their own lens with number 375.
It has a sharp edge between the side and the top which is more straight than the Sireno and Dietz lenses.
98DDB279-F2F4-49F8-BC34-CEA9BBD797EB.jpeg

The Dietz 7-11 lens and the lens for Sireno 44660 look very similar to the Signal-Stat lens. They also has a sharp edge between the side and the top but the Dietz lens is more convex than the Sireno lens and Signal-Stat lens.

The Unity and the Stratolite 80 lens have a similar shape to each other with the rounded edge between the side and top.

The Stratolite 80 was used on several other manufacturers larger lights like Arrow & North American Signal.

Michael
 

cmb56

Member
What we also can say is that the side on the Signal-Stat lens is slightly bent but the Dietz and Sireno lenses are straight.

Michael
 

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