Front and back panel of the GR-700, as shown in the 1984 Roland GR-700 and G-707 Brochure.
The GR-700 Guitar Synthesizer, G-707 Guitar Controller, released in late 1984, and the GR-77B Bass Guitar Synthesizer, released around a year later, from the Roland Corporation.
The device names and model numbers are typeset in Earth, with altered A’s and a slightly different G. Numbers are also slightly different to those seen in listings. These may be yet unseen alternate glyphs or modifications. Earth was also used for the device names and numbers on many other Roland products released around the mid-1980s. Other text featured in the brochure and on the devices appears to be set in Helvetica.
Front cover of the 1984 GR-700 and G-707 Brochure. Model names are typeset in Earth. Note different A and G used.
Detail from the GR-77B
The GR-700 compared to the GR-77B. Note the different A’s used on each model, potentially constructed from an inverted U or V, or maybe unseen alternate glyphs included in Earth.