2x IAB 1x GAB - makers?

[Gran Sasso]

Those just come in, any infos about the makers? Thanks

[Gran Sasso]

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[Hans Kondor]

Unknown maker GAB, Wilhelm Hobacher IAB, Pforzheim design IAB maybe Mayer.

[Graeme]

Hi

I will go with Hans on those.

The Mayer IAB looks to have had a tough life..

regards
Graeme

[fischer]

The Mayer IAB looks to have had a tough life..

The catch on the attributed Mayer looks strange as well, possible replacement?

Best Regards, fischer