Steering Wheel Boss ID(s)

[Hipwell]

I know nothing about accessory wheels, but I've got a pile of bosses at work.

But I have no idea where they are from, who made them or what they fit.

This is a selection of each type, (they are all different, except the top three which are identical).

Any idea where to start, most have different castings, spline sizes, some are number 6/10/18/24?

Thanks Matt