hi, just to answer a few of the questions. The Wang 724 Keyboards 725-3770-US are indeed black mechanical alps. I sold some used 724 pink alps in the past for much more than these up to $100 a peace and that was used. The difference with these are they are in mint new condition and never have been used. They also have original factory box and packaging in good condition. They are only run up and tested before being shipped.
There is no mechanical difference between the black alps and the pink alps as far as I could tell when I have used them in the past. It is just a color which can't even be seen when the key caps are in place. I have seen a number if pinks in the past. However, I have only seen 1 with green alps ever and that was about 12 years ago. Black seems to be the common key switches. However, the color of the them has nothing to do with quality and functionality of the keyboards.
I do know that they are designed to emulate the Wang terminals 4230, 4230A, 2110A and some others on a standard PC for functionality. The keyboard can do anything the keyboards for those terminals could do. On a standard PC, you would run, a WLOC card which serves to connect to Wang server and emulate a Wang terminal on a PC. This along with Wang WLOC program makes a complete Wang terminal and the Wang 724 keyboard completes this package. You can assign keys all sorts of programmable tasks. I do not know how you would go about doing this using it as a standard keyboard as only the standard keyboard functions would work I suppose.
I can get working Wang WLOC cards and the software, if anyone is interested in try out what a Wang terminal was like on your PC. Your PC will have to have 16 bit slots tho. you won't be able to do much with out a Wang server like a Wang VS-6000 or what ever, I can get them too.
I have never touched a better made keyboard than these. Even the Wang 3335 or 3155 for the real Wang workstation terminals suck compared to these. By the way, I have other Wang keyboards, some used some new if anyone is interested.