History of the board game Monopoly game's history, and argued that the copyrights and trademarks held by Parker Brothers should be nullified, as the game came out of the public domain. Among other things, Anspach discovered the empty 1933 Charles B. Darrow file at the United States Copyright Office, testimony from the "Inflation" game case that was settled out of court, and letters from Knapp Electric challenging Parker Brothers over "Monopoly". As the case went to trial in November 1976, Anspach produced testimony by many involved with the early development of the game, including Catherine and Willard Allphin, Dorothea Raiford and Charles Todd. Willard Allphin attempted
Parker Brothers in 1934, they decided to publish it the next year. It was a success, and the company had difficulty keeping up with demand. The company continued to grow throughout the next several decades, producing such lasting games as "Cluedo" (released as "Clue" in North America), "Risk", and "Sorry!" Parker Brothers marketed its first jigsaw puzzle in 1887. The most highly sought of Parker puzzles are the wooden Parker Pastimes. Parker also produced children's puzzles, as well as the Climax, Jig-A-Jig, Jig Wood, and Paramount lines. According to "Jigsaw Puzzles: An Illustrated History and Price Guide", by Anne D. Williams, Parker