Jim, Naj & Eric, thanks to you all for helping, the photos Jim proved were great. I searched many photos, ebay, etc to see what might have been oem but never found one with a pin. I really questioned in my mind if the center pin for a hardtop was needed since there are the 4 latching points already. That being said, MB must have thought it necessary since they are on the 207's. Thanks again for the help!
Rolland