I've been collecting decks of playing cards for a relatively short time but have noticed something...many of those decks have a number, usually three digits, on the tuck case. Bicycle has 808, for example. Other numbers I have noticed on decks include, but are not limited to, 128, 727, 258, 310, 13, 18, 606, 64, 17, 016, 777, 9, et al.
Do these numbers mean anything or are they just arbitrarily plucked out of thin air?
Do these numbers mean anything or are they just arbitrarily plucked out of thin air?