- Made in the United Kingdom
- From 1985 to 1990*
- Is an Enhanced Keyboard variant (101-104 key)**
- Has a sticker like or similar to the three examples shown below
(*I have strong visual accounts for all of 1986 to Q2 1987 already, so anything before or after is especially appreciated.)
(**I have strong visual accounts for IBM 316X and 319X terminal Enhanced and PC/XT and PC/AT Enhanced Keyboards already. Any examples of these on Industrial, RT PC, 3151 or PS/2 Enhanced Keyboards would also be appreciated.)
You're welcome to check IBM UK keyboards that are either newer than that and/or are a different variant (like 122-key), but I strongly suspect they won't have these stickers. For 122-key Model Ms (for example), it may have very similar stickers saying "1A" instead. "1A" and "G" are commonly used in 5250-style IBM InfoWindow documentation to indicate Converged Keyboard and Enhanced Keyboard respectively, but I've also found evidence (to a lesser degree) of their use in 3270 (1A and G) and RT PC (G only) documentation as well. I'm present reviewing a bunch of IBM announcement letters and scans by bitsavers to find out as much as I can.
To be honest (and to be clear I don't state as a fact), I get the hint that "Keyboard/Model G" was only supposed to refer to Enhanced Keyboards and maybe IBM wanted to take what would become Model M Converged Keyboards in a different direction/designation, only to be unified into "Model M" sometime before general production? Both production Enhanced and Converged Keyboards I've seen from very close to their host system's announcements bore "M" at introduction, so if this was the case, it was sorted out before launch and some documentation wasn't updated and these older designations were just carried forward for a short while by IBM UK (and documentation writers into the 2000s). But that's just a theory, a Keyboard Theory...
Cheers!