lreppond,
Of course I had to look. Nice find. Not to pee in the pool, but the one you bought was black anodized, which would have been correct for the 190SL, or very early 230SL's. If you've got a 70 or 71 280SL, the correct one would be chrome plated and very shiny. No one grades tool kits at the concours level, (even Peter Lesler) so I'm sure its not a big deal, except for Obsessive types like me, Hans, Jon, and Achim.
Obsessively yours,
Mike