code column:
"small": small card number with date in the lower right corner
"with": large card number with date in the lower right corner
"without": large card number without date in the lower right corner
"ew": small card number without date in the lower right corner. NTT East/NTT West. These cards are issued from 2000 onwards
A blank indicates cards where only one number code exists, like the older NTT cards with the number in the lower left corner, or denden kosha cards

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
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