Yes that is a telephone repair trouble ticket. You can see where the repairman marked the cable type with a check mark. PIC cable which is:
polyethylene insulated cables (PIC) in which each
pair is individually color-coded and arranged in groups of 25-pairs
Also you can see that he checked that he changed pairs for the phone line to repair it.
Someone needs to talk with some of the older Southwestern Bell people working back in 1981.
