Cluedo set of cards, and a "Detective's Notes" pad on which are printed lists of rooms, weapons and characters, so players can keep detailed notes during the game. Depending on edition, the playing pieces are typically made of coloured plastic, shaped like chess pawns, or character figurines. Occasionally they are made from wood or pewter. The standard edition of Cluedo comes with six basic tokens representing these original characters: The weapon tokens are typically made out of unfinished pewter, with the exception of the rope, which may be made of plastic, metal, or string depending on edition. Special editions have included
Cluedo wife, Elva Pratt (1913-1990), who had helped in designing the game, presented it to Waddingtons' executive, Norman Watson, who immediately purchased it and provided its trademark name of "Cluedo" (a play on "clue" and "Ludo"; "ludo" is Latin for "I play"). Although the patent was granted in 1947, due to post-war shortages in the UK the game was not officially launched by Waddingtons until 1949. It was simultaneously licensed to Parker Brothers in the US for publication, where it was renamed "Clue" along with other minor changes. There were several differences between the original game concept and that initially published