These were issued postwar as well, starting in 1954...instead of the Swastika they placed the Coat-of-arms of the Fire-district...I googled Feuerwehr ehrenzeichen and found a similar badge with a coat of arms...It is awarded in silver and gold grade......hope this helps.
Would a postwar piece still have had an RZM code?
I just read the postwar pieces are actually made by S&L...so that leaves them out. My mistake with the rzm, just noticed it...
Reproduction incorrect pin is the give away.
I can't help with this badge as I know little about them or the signs of a fake but one observation is that the enamelling on TR awards is always high quality and the surface is smooth.
Looking at the second photo where the light catches the left hand arm, you can see the enamel dips below the base metal separations on the ends of the flames. I would always look twice at a supposed genuine piece that has sunken enamel or conversely, raised enamel.
Looking for LDO marked EK2s and items relating to U-406.....
A while back when I was looking at an award such as this I was told these were post war fakes. This one was probably never finished.
Fire Brigade Cross - Wehrmacht-Awards.com Militaria Forums
In addition to what has been said above, allow me to add that a Fire Brigade Decoration would not have had RZM-type marks anyway.
Oh, and, as always, the idiot fakers couldn't be bothered to use Umlauts. (Notice "FUR" instead of "FÜR" and "LOSCHWESEN" instead of "LÖSCHWESEN".