datecode column:
this is the alphanumeric code in the upper left corner
punch column:
"1" is a one-punch card, with just one hole at the zero position
"3" is a card that was used to pay telephone bills and is punched with
3 holes at the zero position
"multi" or "m" are all other punch patterns
state column:
"top": card in perfect condition
"tamura": card with a horizontal scratch, which originates from the
telephone
"micro": barely visible tamura-type scratch
"scr": all other types of scratches
"microscr": barely visible scratch
"wear": wear
"microwear": barely visible wear
comments column:
if visible, the 8-12 digit number on the front side of the card is
added, or any other comment