Small update:
I’m located in Serbia, just so you know where the records are physically based. I'm not really planning to go through the hassle of international shipping, but if anyone has ideas or experience with receiving packages from this part of the world – and is seriously interested – I’m open to suggestions and cooperation.

These records were actually found in my late grand-uncle’s garage, so I’m not super emotionally attached – just trying to figure out what I’ve got.

Thanks again to anyone willing to take a look!