These pictures are intended to show off the keyswitches on a Sun type-3
keyboard.  In the text, files are named with six-digit numbers; to get
file names, these need to have pic- prepended and .jpg appended to them
(for example, 163827 in the text corresponds to pic-163827.jpg).

163827 is an overview of the whole keyboard (and nearby stuff - for
example, my left knee at the bottom left).

163030 is a closeup of the left end of the keyboard.  This is where the
rest of the pictures focus on.  The keyswitches appear to all be
identical for the most part; a few of the keys feel as though they use
stronger springs than the others, but the difference is small enough to
be subtle; it could even be my imagination.  A few of the wider of the
other keys - left shift is an example - actually have two switches
(which, based on pressing them individually with the keycap taken off,
appear to be wired in parallel).  And there are mechanical hitngs such
as the space bar having a metal piece - it could be called heavy steel
wire or light steel rod - running left-to-right with the ends hinged so
that a press anywhere along its length makes the whole piece of plastic
move down together instead of tilting (which I would exepect would
usually mean jamming).  But even that has just one keyswitch (near its
middle), a switch that appears identical to the others.

163100 has the L10 keycap removed.  Each keyswitch has four parts: a
black plastic part which is permanently affixed to the keyboard, a
spring, a piece (usually black but, for a few keys, white - I don't
know whether they differ in any way besides colour) piece that slides
in the plastic piece mentioned above, and a keycap that snaps onto the
latter plastic piece.  Upon removing a keycap, sometimes it will unsnap
from the sliding plastic piece and sometimes not; in this case it did
not - the sliding piece came out with the keycap.

163133 is the same as 163100 except it has the sliding plastic piece
unsnapped from the keycap and the spring lifted off the fixed part.

163201 has had the L9 keycap removed as well.  This time the sliding
piece stayed behind.

163211 is the same state as 163201, just a view from another angle.

163240 is a view of the sliding plastic piece.  They are asymmetric in
two notable ways; this view is designed to emphasize one of those
asymmetries.  Note there is a small protrusion on the top surface, at
the right end in this picture.  It is visible in 163201 and 163211 as
well, though it's hard to see unless you know what you're looking for.

163257 and 163310 are two more views of the sliding plastic piece,
designed to emphasize the other asymmetry.

163356 is a picture from slightly greater distance after removing L7
and L8 as well as L9 and L10.  All the removed pieces are clustered at
the top of the keyboard (four sliding black pieces, four springs, and
four keycaps).

163510 is a closeup of the four keyswitches' fixed parts.  Some hairs
and crud are visible; this is an operational keyboard which has been in
use for years, so some level of debris is to be expected.  There is a
part here that moves, though it moves by bending plastic (within its
elastic limits, to be sure).  It is not obvious here unless you know
what you're looking for; later piectures make that clearer.

163522, 163541, 163549, and 163555 are four more views of the same
thing as 163510, but with different viewing angles and lighting.

163735 is an attempt to point out the movable part.  The drastically
foreshortened black-and-white thing at the left is just a light.  The
metallic thing pointing diagonally is a pointy piece of metal I'm just
using as a pointer.  It's touching the movable piece, which pivots,
with the point where I'm touching it moving to the left, the "hinge"
running between at what is in this picture the top right to the bottom
right, close to the board, and another peice, looking like a square
with a rectangle cut out of the left middle, moving up and down.  I
assume this motion is related to keyswitch operation, but I don't
entirely understand how.

163738 is the same as 163735, but with the plastic piece pushed on.
(It moves only a little.)

163811 is the same view, but this time with the pointer touching the
other end of the moving part, the one that moves vertically.