Looks like WM23H9 to me. WM23 is coronet super bee hardtop. H is 383 engine.
Here is a fender tag decode from mymopar.com
http://www.mymopar.com/index.php?pid=87
Here is what I came up with.
WM23:
Dodge Coronet,Charger
Medium, Super Bee
2 Door Hardtop
H9E: 383 330HP OR 335HP 1-4BBL 8 CYL
1969
Los Angeles, CA, USA
171747: Sequence number
E63: 383 cid 4 barrel V8 H.P. 335hp
D32: Heavy Duty Automatic Transmission
B5: Bright Blue Metallic Exterior Color
H2B: Trim - High, Vinyl Bench Seat, Blue
B7: Medium Blue Metallic Int. Door Frames
725: Build Date: July 25
373851: Order number
B5: Bright Blue Metallic Top Color
A62: Rallye Instrument Cluster Package
B51: Power Brakes
J25: 3 Speed Wipers
M21: Roof drip rail moldings
M46: Simulated ¼ Scoops
N96: Fresh Air Hood
R11: Radio Solid State AM (2 Watts)
V8X: Tranverse Stripes, Black
26: 26in Radiator
A31: High Performance Axle Package w/3.91 Ratio
END: End of Sales Codes
Matt