This is a keyboard that came with a DEC VT180 Robin computer that I got some time ago. It is an optional Word Processing System specific keyboard that has the same functionality as a DEC VT100 keyboard but has special legends for Word Processing functionality. The DEC Robin
is essentially a VT100 terminal with extra boards to make it a full fledged computer.
If you like legends, you'll like this one. Of note are the multi-coloured key caps with the most upper right key on the numeric keypad being gold. This is known as the "Gold Key" and this one key even has it's own Wikipedia page
!. Pressing the Gold key along with a key that had a front legend printed on it would produce the named function.
Another unique feature is that a small number of keys not only have front legends but also "side legends". I'm not sure if this is unique to this keyboard but it's pretty cool and they are quite visible! One of the funny front legends also indicated that there is a "Dead Key"
While this looks almost identical to the VT-100 keyboard (the mechanics are essentially the same), this one has a custom mat that is affixed around the keyboard and numpad mechanisms that have helper key top graphics printed in various locations to assist the operator in finding hot keys quickly.
This keyboard consisting of Hi-Tek linear key switches. It is in the Wiki here
but here are the pics for your forum viewing pleasure: