The same fonts are available on IRIX 5.x and 6.x. No PostScript fonts are supplied with IRIX 4.x, or earlier operating system releases.
Curiously, no separate Adobe Font Metric (.afm) files are supplied. Although the .pfa files do contain character widths, they do not explicitly contain character heights or depths, or kern and ligature information. Typesetters like Scribe, troff, and TeX, word processors, and utilities like lptops and psposter all need font metric files in order to be able to use outline fonts. Some of the fonts below are unique to Silicon Graphics systems; font metrics for the others may be available in Internet archives, or from the Adobe ftp site. This site has the Bitstream Charter and the Adobe Utopia fonts available in InfoZIP archive format.
The following file names (minus the .pfa (PostScript Font - ASCII) extension) exactly match the font names.
/usr/lib/X11/fonts/Type1: Amie.pfa Rock.pfa Cave.pfa Sorority.pfa Courier-Bold.pfa Stroke-Bold.pfa Courier-BoldOblique.pfa Stroke-Roman.pfa Courier-Oblique.pfa Symbol.pfa Courier.pfa Times-Bold.pfa Curl-Roman.pfa Times-BoldItalic.pfa DJB.pfa Times-Italic.pfa Haeberli.pfa Times-Roman.pfa Helvetica-Bold.pfa Tymes-Elfin.pfa Helvetica-BoldOblique.pfa Utopia-Bold.pfa Helvetica-Oblique.pfa Utopia-BoldItalic.pfa Helvetica.pfa Utopia-Italic.pfa Honesty.pfa Utopia-Regular.pfa Inja.pfa fonts.dir Laura.pfa fonts.scale Messenger.pfa
The same files are also available in /usr/lib/DPS/outline/base, but there the .pfa extension is omitted.