IBM punch card (interior trim)

[mockingbird812]

I realize it is not unusual to find multiple buildsheets, but I found a second trim card in the springs of the back seat which was wrapped around the seat frame in my 06A Baltimore '69 Chevelle. This trim card belongs to this Chevelle because the unique body number matches the body number on the trim tag. But there are a couple differences between this punch card and the previous one. 1. The first punch card in 4th column from the left, titled "c", has the number "4" entered. My newly discovered card has a "1". The first punch card has "A52" and "B55" entered under the 5th column titled "OPTIONS" and the other card has no entries. The last 3 columns of the newly discovered card are unviewable as they are integrally wrapped around the frame work and I intend to leave the card in the car. Top picture is my 1st ibm card and below is my newly discovered one.

* Any insight as to meaning of column "c"?
* Any thots on why options are not included on the second card?
* I realize these IBM cards are not the mother load, but anyone else find multiple ones?






Thanks!