Retired Japanese police officer Masao Gunji was recognized for the largest Hello Kitty collection (5,169 items) by the Guinness World Records in November 2016.
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Unearthing My Hello Kitty Collection From The 80s, 90s, and Beyond – Kate Was Here
Kitty House's Instagram, Twitter & Facebook on IDCrawl
Inside a retired Japanese police officer's record-breaking Hello Kitty collection – New York Daily News
Inside a retired Japanese police officer's record-breaking Hello Kitty collection – New York Daily News
Hello Kitty collection in Japan is world's largest
Hello Kitty/ Sanrio Collection - Stuffed Animals & Plush
Hello Kitty, Hello Kitty Wiki
Hello Kitty/ Sanrio Collection - Stuffed Animals & Plush
Retired Japanese Police Officer Proves He's The World's Biggest Hello Kitty Fan