steering wheel hub identification

[M3M3]

I ended up with this steering hub, but have no idea what car it might fit.  It came on a steering wheel with an "M" horn button, so believe it to be for a BMW. pretty sure it is not for a 2002.   MOMO with only ID numbers on it being "C 2007".  fine splines,  turn signal tab,  horn contact ring and about 3.5in tall.   thought it might be for an E30, but it is about an inch taller than the hub on my E30.  anyone recognize what it may go to?  E28?   Have done some googling on the numbers and an image, but have not found a positive ID.

 

 

 

 

 

 

 

[M3M3]

in continuing research, it appears the hub may be the "rare" tall E30/E24/E28 hub.  originally for the airbag cars to allow mounting a wheel at proper distance from turn signal stalks.  NLA.

[Son of Marty]

AFAIK BMW switched to the course splines with the introduction of air bags to prevent switching the airbag and non airbag wheels. 

[M3M3]

We just swapped a non airbag mtech1 onto jgerock's airbag 91 318iS.   Both fine splines.  All bmw's after 84ish have fine splines.  

[irdave]

If you decide you aren't going to use it, I'd be interested.