[TUHS] XPG4, X/OPEN Curses, and SVID Issue 4 Physical Publication?

[segaloco via TUHS]

Good day everyone, I've recently added an X/OPEN Portability Guide
section and a photo of the first SVID issue to the standards section of
the wiki: https://wiki.tuhs.org/doku.php?id=publications:standards

I was wondering, does anyone here know if there were physically
published versions of XPG4, any X/OPEN Curses physical literature,
and/or published SVID Issue 4 copies?  The latter I suspect is not very
likely as SVID Issue 4 concerns spun-off-USL SVR 4.2 I believe, which
didn't make the same splash earlier SVIDs did.  I've only seen PDFs of
this Issue 4.

Anywho, I need to snap a shot of the second issue of Go Solo as well,
and aside from these mentioned, I think the page should adequately
demonstrate the appearance and basic utility of each of the standards
observed.

Thank you!

- Matt G.