"Coupe, Cabriolet, Hardtop, Convertible D" is the full-line brochure which includes the Convertible D instead of the Speedster, and was printed in April 1959. Except for its blue cover, and some differences in the specs, it is almost identical to the earlier "orange" version which did not include the Convertible D. Beware of fakes of the blue covered version. View scans of brochure pages.
The "Rainbow Convertible D" brochure actually comes in two different versions. While the covers and most of the insides of the two versions are the same, the August 1958 version refers to the "Convertible", while the October 1958 version refers to the "Convertible D". The difference is only on an inside page, as shown below. The later version is the more difficult to find. View scans of brochure pages.
A special brochure titled "Operating Instructions for the Opening and Closing of the Convertible-Top" was provided to Convertible D buyers. The cover is shown at right.
All information courtesy of Charlie White, DerWhite's 356 Porsche Sales & Technical Literature, (DerWhite Productions, Phoenix, AZ, 2004)