[Buckhead]

You can tell by looking. In a proportionally spaced font, the width of each letter as printed is depends on what the letter is and is not uniform from one letter to another. In a proportionally spaced font like Palatino or Times New Roman, an upper case "W" is much wider than a lower case "i" or "l". In a monospaced typewriter font like courier, all letters are the exact same width. The development of monospaced fonts was necessitated by the technical limitation that typewriters advanced the platen (or the ball in the case of Selectrics) a uniform distance for each character. Monospaced fonts are measured by characters per inch, or cpi, 10, 11 and 12 being the most common in office documents. This measurement is completely useless with proportionally spaced fonts, except as an average. These memos clearly use a proportionally spaced font.

[Chaguito]

The 4May memo most closely resembles Selectric Adjutant type. However, Adjutant is NOT proportional according to http://www.selectric.org/selectric/fonts/adjutant.gif

Is it true that Selectrics printed proportional fonts? I don't see how, since they used a print ball. Seems like coordination of movement of ball across page would be difficult. Could be wrong.

[granite]

I just fat fingered one of the documents into Word with the defaults. It is an EXACT match. Try it.

[www.hunderdpercenter.com]

I am giving Freepers the credit they deserve for breaking story first @ http://www.hundredpercenter.com/index.html

Good Work!