Iconic,
No question that 280SL Data Cards have rounded corners. They are clearly visible on Ralph's images. I believe, however, 230SL Data Cards had square corners. There are lots of images online of early 60's Mercedes non-W113 Data Cards which also do not have rounded corners. See attached 230 Sedan Data Card.
Also, our Technical Manual lists four variations of the Cards for the entire Pagoda run but it looks like there are more variations. Take a look at the attached image of a 230SL Data Card. This Data Card is a cross between Ver.1 and Ver.2. Notice that some of the print is in a blue color and the card itself is more white than tan. Do you think it is original or a reproduction?
- Rich