Please help.... i'm looking 2 buy an 88-91 civic hb and i have seen 2 ads that claim it's a DX and has a 4spd tranny. Is this true or did only the base model come with the 4?

How can i tell 4 sure that it's really a DX? If anyone knows of a cheap car 4 sale in the Bay Area, CA please let me know.
thanks,
Dustin