If you run the numbers in a decoder you get this. 400 in a 69 lol Not 100% sure i did it correct. Right to left bottom to top right?
:
Unknown
Unknown
Unknown
RM21: Unknown
Unknown
Dodge Main, Hamtramck, MI, USA
7272: Sequence number
E63: 400 cid 2 barrel V8 190hp
D32: Heavy Duty Automatic Transmission
A24: Exterior Color
A31: Trim - Basic, Cloth/Vinyl Bench Seat, Unknown Color
B41: Int. Door Frames
C21: Build Date: December 21
C32: Order number
F15: 65 Amp Alternator
F23: Battery 59 Amp Hour (Series 24 w/Yellow Caps)
G25: Add Vent Windows
M11: Top Color
M21: Roof drip rail moldings
M47: 69 only Hood Scoops - Simulated
R41: Top Color
R42: Top Color
R21: AM/FM Radio (5 1/2 Watts)
R32: Dual Rear Speakers
R45: Oversize Manual Antenna
S25: Firm Ride Shocks 1in Front & Rear
S77: Power Steering
S78: Full Horn Ring
U64: F70-15 White Stripe (Fiberglass belted)
V01: Mono Tone Paint Treatment
END: End of Sales Codes