Unusual (but attractive) color scheme on vintage Miniterm 1203S

[Snarfangel]

I saw this vintage (which sounds so much nicer than "ancient"  ) ) Miniterm 1203S Portable Computer Terminal/acoustic-coupled fax machine on Ebay here:
http://www.ebay.com/itm/Miniterm-1203S-Portable-Computer-Terminal-Early-Fax-Machine-/281605681979?pt=LH_DefaultDomain_0&hash=item419101b33b

The keyboard is unusual in that the left side and the right side seem to be deliberately made with keys of different (but equally attractive) shade of blue:


Of course, like every Geekhacker, I'm curious about what switches it has ( ), but I'm equally curious why they made each side a different color. Any ideas on either aspect?

/Love those keycaps.

[Snarfangel]

I saw this vintage (which sounds so much nicer than "ancient"  ) ) Miniterm 1203S Portable Computer Terminal/acoustic-coupled fax machine on Ebay here:
http://www.ebay.com/itm/Miniterm-1203S-Portable-Computer-Terminal-Early-Fax-Machine-/281605681979?pt=LH_DefaultDomain_0&hash=item419101b33b

The keyboard is unusual in that the left side and the right side seem to be deliberately made with keys of different (but equally attractive) shade of blue:

Show Image

Of course, like every Geekhacker, I'm curious about what switches it has ( ;D ), but I'm equally curious why they made each side a different color. Any ideas on either aspect?

/Love those keycaps.

Oh, wait, on further inspection, I answered my own question -- it has a number pad built in on the right. Still quite an interesting design.