I've posted a video about
this keyboard getting cleaned already, but I haven't actually shown much of it, so here we go.
Most Sun Type 5 keyboards are actually rubberdomes, but thanks to Haata I got aware of this one on ebay. After confirming with the seller by a switch pic that this is actually mechanical I bought it - why not?
The keyboard came with the classic two-tone colour scheme and has pad-printed legends in Futura. The legends are in excellent condition and only a few keys are a bit shiny, while most of them are still very textured. The switches are MX Blacks (non-vintage) and plate mounted.
It has some extra keys on the left and on the right above the numpad. The keys on the left are some sort of commands like stop, repeat, properties,...
The cable (slightly damaged) is detachable and can be plugged in on the left and right side. It is not a PS2 cable btw.
The feet are a sort of 2-in-1 system so you have three height modes instead of the usual two.
And finally a photo from the whole backside and the label.
I might use it just for harvesting the switches but I'm not too sure yet. I hope you enjoyed the photos!