Mine has a black Sprint with a gold bar under the logo.
Don't forget that a '88 bike could easily be on its third derailleur by the time somebody takes one off of it.
The '88 catalog shows a Sprint with a gold parallel
while the '87 shows one like mine
But, you go to VintageCannondale and check out the '88 BLs, and those that still have what could be the original parts seem to have the gold bar AND a mostly chrome FD.
Go HERE