greetings all

I'm in the hunt of EM corsa extra, and I found this corsa extra with 90s production colorway (most likely). wanna make sure the frame is Corsa Extra and the tubing is Columbus SLX. The frame also has headtube cable guide. Greatly appreciate if anyone can help decipher the bb shell code, its L C9175 (pictures attached - error cant upload pic yet ).

thanks in advance!