I don’t remember any significant role of a fly in the novella. So I can be mistaken but I think that the fly (Cynmoyia mortuorum) one each court card from the Bicycle Mr Hyde Deck just underlines air of death as well as blood stains on all cards from this deck and its tuck case. At the same time the fly makes all the court cards one way.

Jack of Spades: Bicycle Dr Jekyll Playing Cards and Bicycle Mr Hyde Playing Cards

Jack of Hearts: Bicycle Dr Jekyll Playing Cards and Bicycle Mr Hyde Playing Cards

Jack of Clubs: Bicycle Dr Jekyll Playing Cards and Bicycle Mr Hyde Playing Cards

Jack of Diamonds: Bicycle Dr Jekyll Playing Cards and Bicycle Mr Hyde Playing Cards

Bottles on the court cards from the Bicycle Mr Hyde Deck are explained on Jokers from both decks. These are above-mentioned special potions helping Dr Jekyll to keep his Mr Hyde inside himself.

Bicycle Dr Jekyll Playing Cards: Joker – Reveal Joker – Joker

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Bicycle Mr Hyde Playing Cards: Joker – Gaff Card – Joker

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Jokers: Bicycle Dr Jekyll Playing Cards and Bicycle Mr Hyde Playing Cards

Backs of both decks are strictly dedicated to the “split personality” of Dr Jekyll. In combination they demonstrate the transformation of Dr Jekyll into Mr Hyde.

The English actor Richard Mansfield (1857 – 1907) was well-known in the dual roles of Dr. Jekyll and Mr. Hyde

Back Design: Bicycle Dr Jekyll Playing Cards and Bicycle Mr Hyde Playing Cards

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