Commonly referred to as the VIN NUMBER, this series of numbers and letters is stamped on a plate attached to the left front door hinge pillar, and stamped on the engine block.

FIRST DIGIT : Identifies the GM Division (4=Buick)

SECOND AND THIRD DIGIT : Identifies the series

SERIES	CODE
Special Deluxe GS 350 Special Deluxe Wagon Skylark Skylark Custom Sportwagon GS 400 LeSabre LeSabre Custom Wildcat Wildcat Custom Electra Electra Custom Riviera	33 34 34 35 44 44 46 52 54 64 66 82 84 94

FOURTH AND FIFTH DIGITS : Identifies the body style

BODY STYLE	CODE
Coupe, 2-Door Station Wagon, 4-Door, 2-Seat Hardtop Coupe, 2-Door Hardtop, 4-Door Sportwagon, 4-Door, 2 Seat Hardtop Coupe, 2-Door Sportwagon, 4-Door, 3-Seat Convertible Sedan, 4-Door Hardtop Coupe, 2-Door	27 35 37 39 55 57 65 67 69 87

SIXTH DIGIT : Identifies the model year (8 = 1968)

SEVENTH DIGIT : Identifies the assembly plant

ASSEMBLY PLANT	CODE
Flint, MI South Gate, CA Fremont, CA Kansas City, KS Wilmington, DE Atlanta, GA Baltimore, MD Kansas City, MO Bloomfield MI Oshawa, Ont., CAN	H C Z X Y D B K V I

LAST 6 DIGITS : Represent the basic production numbers. Starting number 100001/up.