Question: A Cincinnati entrepreneur and coin collect was responsible for the issue of a coin to mark the 100th anniversary of Cleveland, Ohio that was struck in Philadelphia during which two years?
Context: The United States Commemorative Coin Act of 1996 (Public Law 104-329) is a United States federal law which established a commemorative coin program within the United States Mint in 1996.  In addition, the law specifically authorized commemorative coins to observe the 150th anniversary of the death of Dolley Madison, to honor George Washington, the 125th anniversary of the establishment Yellowstone National Park, and the 50th anniversary of Jackie Robinson's racial desegregation of Major League Baseball.  It also established commemorative coin fundraising programs for the Black Revolutionary War Patriots Memorial, Franklin Delano Roosevelt Memorial, and National Law Enforcement Officers Memorial. The Tenpō Tsūhō (Kyūjitai: 天保通寳 /天保通寶 ; Shinjitai: 天保通宝 ) was an Edo period coin with a face value of 100 mon, originally cast in the 6th year of the Tenpō era (1835).  The obverse of the coin reads “Tenpō” (天保 ) a reference to the era this coin was designed in, and “Tsūhō” (通寳 ) which means “circulating treasure” or currency.  the Kaō is that of Gotō San'emon, a member of the Kinza mint's Gotō family (後藤家 ), descendants of Gotō Shozaburo Mitsutsugu, a metalworker and engraver from Kyoto appointed by Shogun Tokugawa Ieyasu in 1601 to oversee the Edo mint of his shogunate and oversee its coinage.  All mother coins were produced in Edo (present day Tokyo) before they were send to other mints where they would place the individual mint’s mark ("shirushi", 印 ) on the edge of the coin.  The coin circulated for 35 years, and stopped being produced during the Meiji restoration after the introduction of the Japanese yen.  Today these coins are now sold as “lucky charms” as well as being collected by numismatists. The Eisenhower Commemorative Dollar is a United States commemorative coin minted in 1990 to celebrate the 100th Anniversary of the birth of General/President Dwight D. Eisenhower.  This coin is not to be confused with the Eisenhower Dollar which was a regular issue American coin. The Centenario is a Mexican gold bullion coin first minted in 1921 to commemorate the 100th anniversary of Mexico's independence from Spain.  The coin is not intended to be used as currency; the face value of 50 pesos is for legal purposes only, and does not reflect the actual value of the gold content. Thomas Gatch Melish (October 28, 1876 – February 15, 1948) was a Cincinnati entrepreneur and coin collector.  In the 1930s, Melish was responsible for two United States commemorative coin issues, the Cincinnati Musical Center half dollar and the Cleveland Centennial half dollar. The United States Sesquicentennial coin issue consisted of a commemorative half dollar and quarter eagle (gold $2.50 piece) struck in 1926 at the Philadelphia Mint for the 150th anniversary of American independence.  The obverse of the half dollar features portraits of the first president, George Washington, and the president in 1926, Calvin Coolidge, making it the only American coin to depict a president in his lifetime. The Cincinnati Musical Center half dollar or Cincinnati Music Center half dollar is a commemorative 50-cent piece struck by the United States Bureau of the Mint in 1936.  Produced with the stated purpose of commemorating the fiftieth anniversary of Cincinnati, Ohio as a center of music, it was conceived by Thomas G. Melish, a coin enthusiast who controlled the group which was allowed to buy the entire issue from the government, and who resold the pieces at high prices. The ten shilling (10s) (Irish: "deich scilling" ) coin was a one-off commemorative coin issued in Ireland in 1966 to mark the 50th anniversary of the Easter Rising.  Ten shillings was a subdivision of the pre-decimal Irish pound, worth ⁄ of an Irish pound, making this the highest value coin in the pre-decimal system. The Cleveland Centennial half dollar is a commemorative United States half dollar struck at the Philadelphia Mint in 1936 and 1937, though all bear the earlier date.  Sometimes known as the Cleveland Centennial Great Lakes Exposition half dollar, it was issued to mark the 100th anniversary of Cleveland, Ohio, as an incorporated city, and in commemoration of the Great Lakes Exposition, held in Cleveland in 1936. The Alabama Centennial half dollar, or Alabama half dollar, was a commemorative fifty-cent coin struck by the United States Bureau of the Mint in 1921 as a belated acknowledgement of the 100th anniversary of Alabama's admission to the Union in 1819.  The coin was created by Laura Gardin Fraser, who became the first woman designer of a coin.
Answer: 1936 and 1937