Barry, I believe you are correct, but let's see if I can learn something from this. I'm starting to realize there is a method to the madness as to how these tags are numbered. It appears the options are all in alphabetical order from bottom to top, left to right starting after the top color (first column, third row from bottom), am I right? If so, then the code in question would have to fall between "C55" and "H51". That would rule out anything except codes beginning with D thru G.
Again, looking at the tag, the remainder of the first letter looks like a semicircle, ruling out D, E and F. That means the code has to start with G. The second character appears to be the lower half of a 3 or 5. The last character appears to be a 4. So that means it's either G34 or G54. Both are LH mirror codes. Since your car is a SE, I guess that you have a remote mirror which would be G34.
Can anybody give more detail about what G54 is? My info says G54 = LH O/Srace mirr Fbd What is "Fbd"