Brass handled vintage screw nut drivers

[PinchPoint]

Can anyone tell me what these were used for. They are well made some are hex and some like a torx.

 

[nine4gmc]

Looks like home/shop made tools, maybe by an apprentice machinist or could just be someone that needed them for a specific purpose. What do they have stamped on them?

 

[neophyte]

The ones that are "like a torx" may be Bristol spline drivers.

 

[PinchPoint]

Looks like home/shop made tools, maybe by an apprentice machinist or could just be someone that needed them for a specific purpose. What do they have stamped on them?

R. Neuber his name I assume. One says Advance Design. A few say nothing.