It had nasty coffee stains (or something much much more distgusting) on the case and tons of dust & filth inside, other than that it's in really good shape. This picture is from the seller:
The seller shipped this Model M with three keycaps that don't fit this layout. Not sure what the keycap on ESC is but the two "PF*" Programm Function keycaps sitting on ALT are usually from terminal keyboards, this PF8 having red APL letters on the front face. Unfortunately there are no other APL keycaps are present on this keyboard.
It has two-part keycaps, I'm not sure we'll ever find a pattern behind IBM's use of one part vs. two part keycaps in terms of models and production years. Maybe clickykeyboards knows more? I own younger and older IBM keyboards with one-part keycaps.
Pretty good rivet situation for a 31 year old Model M, all keys register and feel uniform and snappy the way they should although rivets are missing.
We have a 1390653 in the wiki with a silver badge, just like with the one/ two part keycaps I don't think we'll ever find out what IBM's guideline (if any)was in regard to silver/ black indy badges although the silver badge indy's are much more rare. The wiki page also reads that the 1390653 is from the "late 1980's". Interesting how mine is from 1986.
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