On May 9, 11:07 am, AF6AY wrote:
"Mike Andrews" wrote on Tue, 8 May 2007 11:11:15
EDT:





On Tue, 8 May 2007 03:15:51 EDT, BNB Sound wrote

The first chapter of the "Collins Sideband Book" by Pappenfus,
Bruene, and Schoenike shows an AT&T SSB map with direct
and switched links to worldwide locations, circa 1960. I count
about 122 stations on that map worldwide. Considering that each
commercial SSB circuit of the time could carry two voice and
eight TTY channels simultaneously, that's fairly large. On the
other hand the service was 24/7 and rather routine, not much
emotion-raising (except to the users of such services).

does much if any of this survive to your knowledge?