Rolling questions, again!

I posted this message yesterday and today it's gone!!!
Anyway here it is :
I have owned my 911 T from 1970 for two years now. I thought I knew the car really well until yesterday when I checked the tire pressure. The wheels are all Fuchs alloy. 4 wheels, including the spare are identical with the five spokes going out and then coming back inside to join the rim, around 1"3/4 from the outside edge of the wheel. But 1 wheel, while the same size as the others, the spokes comes straight down to the rim, around 1/2" from the outside edge !!!
What is that wheel coming from?
Is there different Fuchs wheel designs?
Are they all originals?
Having such a different " casting " with 1 wheel can be a driving problem?
Thanks for your responses.

There were indeed different 'designs' for the early Fuchs wheels, and it pertains to whether the wheels were designed for tubeless tires or not. Since the European use of tubes persisted much longer than in the USA, that is what I call the 'early' design, and for the 6x15 wheel, it had the appearance of a 'deeper' spoke, and also on the back side you will find 10 'ribs' corresponding to the 'edges' of the five spokes, where the rim meets! There is no 'bead' sharacteristic of 'tubeless' rims and wheels. The part number for an 'early' 6x15 wheel is 901.361.012.06 and according to Bruce Anderson's 2nd Ed. 'Porsche 911 Performance Handbook' the offset is 36 mm, the same as the later wheel. The 'later' wheel has a much more 'shallow' dish to the spokes, there are no reinforcement 'ribs,' has the USA Tire and Rim Manufacturer's Association 'bead' for tubeless tires, and has part number 911.361.020.10. Since there is no difference in the offset of these two versions, I can't immagine a handling problem could result from having a 'mixed' set on your car!

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Warren Hall
1973 911S Targa