I am planning to make a few Buchla format modules but what has been driving me a bit crazy is trying to work out which fonts were used on the 100 series (1960s) and 200 series (1970s) modules. I have spent a lot of time on forums and google trying to work out what the beautiful sans-serif font he used was, and I have come to the conclusion that it doesn't exist anymore! It is NOT a standard typeface that is currently available as a downloadable computer-based font (such as helvetica, folio, universe, akzidenz) it would have been type-set by hand to Don's specifications. Anyway, I have found what I think is the closest thing possible on a computer and it is a typeface called "Grotesque No. 9 SH Bold Condensed Italic OT". I actually had to BUY IT WITH MONEY! which surprised me. Have a look at the screenshots below. The first is of the Buchla 259 dual oscillator from the 1970s with its lovely blue typography. Below that is my test. In black is my attempt using Grotesque No. 9. I had to change the letter spacing and weight on to match it up. It's pretty close though isn't it?