Found this guy at work today....

[Reptile]

Couldnt find too much info on these I know some with same model have different switches?

Anyone got some knowledge?

By the way been browsing around here a lot trying to learn and didnt have much reason to register till this :-)

[keyb_gr]

That's a rubber dome NMB. They're supposed to be very good for rubber domes. Apparently used for normal office work in this case.

A spacer invaders RT101+ would look quite different, like this or this.

[Mr. Perfect]

I found switches like that in an older Logitech. They really are a step above regular rubber domes. No key wobble for starters.

I don't suppose they're even in boards these days, though, are they?

[8_INCH_FLOPPY]

I have to boards with those.  They are very nice rubber domes.

[ynih]

Welcome to Geek Hack!

[bytemeavaj]

Uhhh I think you should clean it before you use it LOL

[Surly73]

I have a board with those switches too.  Mine is an NEC RT6555T.  The label itself is even a dead ringer for the one posted here except for different model# and the inclusion of "NEC Technologies Inc." on the bottom.

Mine is ANSI layout, though, with wide BS and ENTER.  Under the keycaps looks identical to this post.  Following on with my first thread here ("help me narrow") over the years I have observed strong preferences for some keyboards over others without a clear understanding of why nor a drive to identify switch types, buckling domes etc...

This keyboard is on the list of ones I had a positive experience with around 15 years ago and managed to snag one for my "collection".  It's been attached to a non-graphics server for a couple of years.  Over the last couple of weeks I've found that others I enjoyed over the years also earned some respect here - interesting to see.

Google knows very little about this board - I'll be interested to see what, if anything, else comes up in this thread.