ICYMI Lee Asher Tweeted: Oct 14th -17th @52PlusJokerClub will hold their annual playingcard collecting convention virtually- free to all. YOU ARE INVITED!
From Lee Asher's blog:
How Old Is Your Deck?
The following material, designed to assist collectors in dating their U.S. decks, is produced here courtesy of the 52 Plus Joker Organization. It appeared originally in an article by Margery Griffith, then curator of the United States Playing Card Co. Museum in Cincinnati, in their quarterly bulletin 'CLEAR THE DECKS' in April 1991.
Find Your Ace of Spades
Like knowing the grade of your cards, a dating aid can be very useful. For decks manufactured by United States Playing Card Co., a dating code was placed on the Ace of Spades at time of manufacture. The code first came into use in 1904 and it applies only to Aces of Spades that bear a letter plus a four digit number. Combinations with fewer numbers have no meaning for collectors.
Right from the beginning in 1904, the same codes were used by National Playing Card Co. and New York Consolidated Card Co., subsidiaries by then of USPC. Andrew Dougherty and Russell Playing Card Co. also used these codes, as they became part of USPC in 1907 and 1929 respectively.