Exactly. Squadron pogues didn't have anything fancy. The little orange-case Selectric with the 12 pitch elite ball was it.
Because of my background and knowledge of standard adminstrative formatting, abbreviation, and filing practices relating to official correspondence in the 70s I could have made perfect forgeries. These are not perfect by any means.
The "Executive" came out decades before the Selectric, and may well have been less expensive. The beuaty of the Selectric was that it made it impossible to crash two type bars by hitting two keys at the same time.