The top pic has the flat-angled rim of the original Rivieras, but lacks the raised shiny area on the spokes - so I'm not sure if that's a late or early original Riv production run. The smooth rims required that only stick-on weights be used for balancing.
The lower pic has the rim with the lip for for clamp-on weights which denotes it's one of the later non-original-Riviera wheels.
All Rivs & repops of same were never OE on 914s, but were the popular wheel for a 5 lug/spoke look without having to change the 4-lug hubs on 914/4s & were therefore very popular on 914s back in the day.
Here are 2 pix of the original Rivieras on my 73 914-2.0 since sometime before I bought it from the OO in Nov-Dec 75. Note the smooth rims, the satin/flat black painted & rough-surfaced spokes with shiny raised trapazoidal area on the spokes & the original Rivera center cap with interlocking stylized "Rs" logo.
Also note that these were the far less common brushed aluminum version - as opposed to the more common polished ones, which looked cool but are a PITA to keep looking semi-shiny as new! So they're not heavily oxidized in the pic, but just a softer brushed aluminum look.
Click to view attachment Click to view attachment^ note that there is plenty of space between the tire & rear fender in the pic above, so this has the proper 914 offset, whereas Western Wheels & many EMPIs, etc. have the VW offset & the tire only has about 1/4" - 1/2" of space to the fender lip.Hope this helps clear it up a bit for you, even if I can't say what the top one of your pix is for sure.
Cheers!
Tom
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