Help: Mountain Comp. multi-function card

[scaffee@ibm.net]

I'm hoping someone can help me identify a card.  It's obviously a
multi-function card of some sort (it says "MULTIFUNCTION" on it), and the
person I got it from says it's supposed to have a clock on it.  (This person
also got it second hand and doesn't know what to do with it.)

There's a jumper wire leading from the top two pins of J6 in back, and
there's a wire on the back side of the card (near the front end) which is
a connection to a holder for 2 AA batteries.

J1, J2, and J3 are all single jumpers, J4 (26 pins) and J5 (20 pins)
look like cable connectors of some sort (disk? serial? parallel?
joystick? tape?)

The "SEF" jumper in the middle is squashed in the picture.  It's really
more like this (where "o" represents a jumper pin):

S o o E
  o o F


My ASCII art isn't great, but here's a "picture" of the card.  At least this
shows the relative positions of things.

Any help identifying this card would be greatly appreciated as I'd like to
to figure out how to get it running in my //e.  Especially if the clock
works.

Sarah Caffee
scaffee@ibm.net

              ________________________________________________________________
        _____/: : : ::::::::::::: :::::::::: ------- ------- ------- ------- |
 ______/      J1J2J3     J4           J5     |     | |     | |     | |     | |
|   -------------  ------- ------- --------- ------- ------- ------- ------- |
|   |           |  |     | |     | |       |                                 |
|   |           |  ------- ------- ---------                                 |
|   -------------        S::EF                                               |
|                  ------- ------- --------- ------- ------- ------- ------- |
| -------  ------- |     | |     | |       | |     | |     | |     | |     | |
| |     |  |     | ------- ------- --------- ------- ------- ------- ------- |
| -------  -------                                                           |
|            (c)   Mountain Computer                                         |
|             1981    Incorporated                                      J6:: |
|                           ------- ----- ---------- -------- -------- ----- |
| ------- -------- -------- |     | |   | |        | |      | |      | |   | | 
| |     | |      | |      | ------- ----- |        | -------- -------- ----- |
| ------- -------- --------               ----------                         |
|_MULTIFUNCTION 05-00210-01D  SN 14770-110-02__________                    __|
                                                       ||||||||||||||||||||