Special Insulators, which I don't know where were they used... The first up is an unusual D-sístem fuse Insulator, and old Czech manufactured telegraph Insulator from a railwas sation, two brown Hungarian manufactured "cross nuts" or X nuts. the big one I don't know, it is Hungarian manufactured too. The small rod I think, it is an operation rod's Insulator.

Their bottom. The fuse Insulator, and interesting, the other two don't have pin hole screw. The central one is an very old Insulator, manufactured in 1875 in Czech, and used in Hungary.

A rod Insulator. I think it was switch operating rod.