Here's another shot with hopefully better focus
View attachment 616382
OK, so here goes.
From the bottom up, left to right.
CL23 is the car line and body style - C - Chrysler; L is the price class - Low; 23 is for two-door hardtop
61 is the engine - 383 2 barrel, 270hp
5 is the transmission - Torqueflite Auto
635 is the tires - 7.35X14
621 is the scheduled production date - June 21, 1967
13119 is the shipping order
The “1” under the upper case “A” is axle - 2.76 ratio
”TRM” is the trim - L - Low; R - Bench Seat (cloth and vinyl); M - Black
”PNT” is paint - FF1 - Light Green Metallic (I am not certain, but I believe the second “F” would be for the lower paint if it was ordered with a painted roof (this is true for my 64 Polara which has a white painted top and an Anniversary Gold bottom)
The “8” and “9” under K and L should correspond to power items - 8 - Power Windows and 9 - Power Vent Windows
The “R” is for Radio - 2 - Astrophonic Deluxe AM Radio (5.5 watts)
The “2” under ”X” should be the glass - tinted windshield only
The “6” under “Y” should be top/roof - Black Vinyl Roof
The “6” under “d” should be rear options - deleted heater
The “6” under “g” should be Mouldings - bumper reveal
The “7” under “h” should be lights - hood mounted turn indicator
The “1” under “u“ should be Vehicle Sales and Delivery - sold car/expedite (I assume this mean order, not bought off the lot)
Now my caveat, I used the ninth edition of Galen Govier’s code book, so, there may have been some update I am not aware of. A shameless plug for his books - all are very good reference books.
Out of curiosity, I would like to know if everything seems to match what you have/can see on your car.
I hope this helps