So we have PM27L0D182721 (SBD January 5, 1970) and PM27T0D140878 (SBD October 20, 1969).
VIN decoder - PM27T0D140878 (more photos and discussion here)
E85 - 440 4 bbl D32
A727 Auto Transmission
P - Plymouth
M - Medium Price Class
27 - Convertible
T - 440 cu in, 4 bbl
0 - 1970
D - Belvedere IL
140878 - Sequence Nbr (VIN: PM27T0D140878 )
TX9 - Body Paint - Black
M6XA - Vinyl bucket seats - Black & Charcoal
TX9 - Black Door Panels Paint
A20 - October 20, 1969 SBD
V3X - Black Convertible Top
A01 - Light Package
A04 - Radio Package
B41 - Front Disc & Rear Drums
C21 - Center Front Seat Console
C55 - Bucket Seats
G11 - Tinted Glass (all windows)
G31 - RHS Mirror
H51 - A/C (Manual)
M31 - Belt Molding
M85 - Front & Rear Bumper Guards
N88 - Cruise Control
P31 - Power Windows
P41 - Power Door Locks
R35 - AM/FM Stereo
S62 - Tilt Steering
V01 - Mono Body Paint
V5X - Black Body Molding
VIN decoder - PM27L0D182721
P - Plymouth
M - Medium Price Class (Fury iii)
27 - Convertible
L - 383 cu in, 2 bbl
0 - 1970
D - Belvedere IL
182721 - Build Sequence (VIN: PM27L0D182721)
EF8 - Ivy Green Metallic Paint
M4F8 - Green bench interior
EF8 - Green Interior
V3W - White Convertible Top
A01 - Light Package
G11 - Tinted Glass
H51 - A/C
L31 - Hood/Fender Mounted Turn Signals
M31 - Belt Molding
R11 - AM Radio
V01 - Mono Paint Treatment
V5F - Green Body Side Molding
Y05 - Built to USA Specs
Y16 - Sales Bank
26 - 26in radiator
PS: tag of PM27T0D140878 added on July 15 thanks to @70 Sport Suburban