Little Black Book
Update - From the comments about the list there are some patterns emerging.
Firstly there are 13 names and 13 codes, and then there are the same number of blue names and blue codes.
The list to the right has just taken the black / blue names and matched them with the codes in the order they appear in the list, this may not be the right pairings, but it may be a start.
SG_Tess pointed out in the comments that there is some writing on the other side of the page.
A quick enhancement shows there are words there, but not all of them are clear.