Know the code for option?
Here's what I can make out--or at least, think I can. Some are EWAGs. Read from left to right, bottom to top, we have:
E58 - 360HP 4-barrel V8 ('75 dealer information shows E55?)
D34 - A727A transmission (mandatory with 360HP)
LM29 - Dart, Medium price class, 2-door sport hardtop
L5G - 360HP, 1975 model year, St. Louis production (?)
13945x - VIN sequence number
FE5 - Bright Red
C6XW - Bucket seats, black & white interior
000 - No upper door paint (full door panels)
A16 - VIN added to production schedule October 16, 1974 (this is never the build date!)
103xxx - Factory order number
V4W (?) - Canopy vinyl roof (can't make out last digit - X would be black, W would be white)
U - Build to US FMVSS
A88 - Deluxe interior group: Woodgrain on dash/doors/deluxe wheel, rear-seat armrest w/ashtrays
A91 - Deluxe insulation package: Hood pad, undercoating, additional body insulation, and Noise Reduction package (Noise Reduction eliminated on Dart Sport 360)
B41 - Power brakes, disc front/drum rear
C16 - Console w/floor shift
C56 (?)- Bucket seats, non-reclining
G55 - LH painted racing mirror, remote
G65 - Can't find '75 information, but it's glass- or mirror-related
G75 - Dual painted racing mirrors, LH remote/RH manual
J52 - Inside hood release
K6_ (total stab in the dark) - Body performance stripe (X = black, W = white)
M26 - Wheel opening mouldings
M38 - Bright tail panel trim (taillamp surround)
N38 - Non-catalyst exhaust system
N41 - Dual exhaust system
R11 (another educated guess) - AM radio, 2 watt
If there's something in the extreme upper left, I can't make it out
26 - 26" radiator opening
A0 - No idea. Ed McMahon horn option?
END - End of sales codes
I enhanced the photos, which didn't make them much better, but that's what I got.
The best option is to remove the tag and clean the back so the codes are clearer, as slantsixdan suggested. While doing so, set the tag on a soft surface so you don't damage the paint.