i would say this is a good original IAB to bad the catch is broken off !!
I'm not sure but think Gottlieb & Wagner? but let the experts decide.
Good original badge but I'm thinking a ShuCo design.
Looking for LDO marked EK2s and items relating to U-406.....
Yes, it's a SHuCo variant. Stewy
I would also say it's a ShuCo Design example. From the first series of pics, I was thinking the same as Kevin as the badge looked to be the G&W variant with the hardware set into recesses or cut outs in the reverse.
The new pics show the hardware sits on top of the reverse and soldered in place.
Best Regards, fischer
Thanks for yalls expertise, this one will be going in the display case