1971 Chevelle Body Number Plates ~ Van Nuys, CA. (L)

ST  71-13637 ~ 1971 Malibu Sport Coupe (189,970 units)
L ~ Body Assembly ~ Los Angeles, California
00145  BDY ~ Fisher Body unit number
TR  706 ~ Black Elk Coated Fabric, Coated Fabric (bucket)
26 B  PNT ~ Mulsanne Blue, black vinyl top (lower-upper)
08B ~ Body Date - August, 2nd week
014398 ~ Data processing number - block 24 of build sheet*
11 ~ Data processing number (SEQ NO.) - block 10 of build sheet**
0001 ~ Data processing number - block 24 of build sheet*

VIN indicates #13 off the assembly line.

ST  71-13537 ~ 1971 Malibu Sport Coupe (189,970 units)
L ~ Body Assembly ~ Los Angeles, California
05553  BDY ~ Fisher Body unit number
TR  730 ~ Dark Jade Rondel Cloth, Antique Dark Jade Coated Fabric (bench)
61 61  PNT ~ Sandalwood (lower-upper)
01B ~ Body Date - January, 2nd week
165976 ~ Data processing number - block 24 of build sheet*
12 ~ Data processing number (SEQ NO.) - block 10 of build sheet**
0112 ~ Data processing number - block 24 of build sheet*

* Only the first 6-digit number and the last 4 digits of the second 6-digit number appear in block 24.
** The first two numbers from the second 6-digit series are SEQ. NO from block 10.