Reverse engineering a 12 pin LCD?
Based upon the labeling, I would guess that the LCD glass has a total of 27 segments which are multiplexed in a 3x9 arrangement.  The easiest way to produce a map is probably to temporarily wire all 12 LCD wires to CPU output pins, and then write a program that will alternately write (011111111111) and (100000000000) to the display (at 1kHz or so) until you've observed what segments are connected to the first pin, then (101111111111) and (010000000000) until you've mapped out what segments are connected to the second pin, etc.  When driving the display, you must make certain that amount of time the outputs spend in any state is about the same as the amount of time they spend in the all-bits-complemented state; failure to do this may cause temporary damage to the display within seconds [meaning the display will look "odd" for awhile, but may eventually return to normal], and destroy it within minutes.