Cowl Tag Info:

ST 73-4BP67Xxxxxxx   BDY
TR 446              11-T? PNT
xxx

ST-73 = 1973 Model Year
4 = Buick Motor Division
BP = Centurion
67 = Convertible
X = Fairfax, KS (General Motors Assembly Division)
xxxxxx = Body Number
TR 446 = Trim code - Saddle Vinyl Notchback Interior
11 = Lower body color (Arctic White)
T? = Upper body color (Sandalwood? - current color too dark to be Sandalwood)
xxx = Built x week of  197x

VIN:  4P67T3X189426

4 = Buick Motor Division
P = Centurion
67 = 2 Door Convertible
T = Optional 455-4 Engine
3 = 1973 Model Year
X = Fairfax, KS Assembly Plant
189426 = basic sequential production number (100001 was first built)

Notes: