Trying to tell between german E57 manufacturers..

[madscientist]

I had learnt some time ago about the e57 siren, developed in Germany as an industry standard. I do believe the e57 descends from an old Elektror model which may have been adopted as a norm so any manufacturer following its design can have spare parts from any other nationwide (germany).

Now.. i had learn that some E57 made their way into South America. As far as i know they were made by Elektror, Hörmann, Siemens & Schuckert, Abeg, Helin, Funke & Huster and maybe others.

As far as i know, if i had one unit per manufacturer, i they all should look identical. However, do they have some sort of little difference between them?
Does they have details that can lead me to be able to tell an Elektror from a Siemens or from an Abeg by looking them?

[SirenMadness]

While my study of the E57 was admittedly limited, I'll say that every photo I looked at featuring a bare unit led to every example looking identical, and with one common name across the board I'd say it was a cookie-cutter template for whoever chose to produce em... some examples were even built under license by a Croatian manufacturer. I can't say for sure, but I'd ascertain the tooling and casting developed by Elektror likely could've been the sole source for every other manufacturer who decided to put their name on it. The head-tag might shed some light, but going by the controls -assuming still original- would likely give the biggest clue as to what company offered up whatever specific unit.

[ArxCyberwolf]

The ARS Wiki article on the E57 goes into some detail about the various differences between E57 models in the "Design" section.
https://wiki.airraidsirens.net/E57