here's the 72 reference page
https://www.teambuick.com/reference/years/72.php
here's the 71 chassis manual
https://www.teambuick.com/reference/...ssis/index.php
ST72 = 1972 model year
4 = Buick division
33 = Skylark base model
37? = 2dr hardtop
L1 = should be the plant code, 'L' is the Van Nuys CA Chevy plant, probably not correct
237718 = sequential Body Number
TR 135 = Saddle ( brown ) color vinyl interior, could be either buckets or a notch bench
65 = Flame Orange paint
A = White vinyl roof
05BA65 = option codes, i don't have
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