Cowl Tag Info:

ST 73-4BP57Yxxxxxx   BDY
TR xxx              46-T PNT
xxx

ST-73 = 1973 Model Year
4 = Buick Motor Division
BP = Centurion
57 = 2 Door Hardtop
Y = Wilmington, DE (General Motors Assembly Division)
xxxxxx = Body Number
TR xxx = Trim code -  Notchback Interior
46 = Lower body color (Green-Gold)
T = Upper body color (Sandalwood Vinyl Top)
xxx = Built  week of  197x

VIN:  4P57J3Y133765

4 = Buick Motor Division
P = Centurion
57 = 2 Door Hardtop
J = Standard 350-4 Engine
3 = 1973 Model Year
Y = Wilmington, DE Assembly Plant
133765 = basic sequential production number (100001 was first built)

Notes: