indices
Corner Indices
Corner Indices were a major innovation in playing card production.

Woolley & Co: “Eurekas”
Woolley & Co: “Eureka” playing cards with rounded corners, small index pips and decorative back design, c.1880-1885.

41: A Guide to Dating Playing Cards
Dating is a particularly tricky but very interesting problem to tackle and there are many pitfalls.

33: Functional Changes to Playing Cards
The emphasis throughout my collecting has been on the design of the courts cards, and it should be pointed out that there have been some functional changes to cards, which have affected the traditional designs, especially in the 19th century.

Indicator No.50
No.50 appears at the bottom of the Ace of Spades and the cards have corner indices and miniature suit symbols in the corners.

Triplicate No.18
Dougherty first secured a patent for “Triplicates” in 1876, a novel type of indices with a miniature card in the top left-hand corner (and bottom right).

Ivorette
Dougherty was at the forefront of innovation, adding Best Bowers and then Jokers, rounded corners and various types of indices, or indicators, to his cards.

Pigmy Playing Cards
Pigmy Miniature Playing Cards

Samuel Hart, 1846-1871
Samuel Hart was a prolific manufacturer of playing cards who commenced business sometime around 1845 in Philadelphia. He had previously worked for L.I. Cohen.
