On 9 August, I have done oral presentation at Replaying Japan 2019 held by Ritsumeikan Center for Game Studies in Kyoto. The presentation title was ‘A Study of Card Game to Increase the Vocabulary of Japanese Traditional Color’ (sponsored by the grant of HAYAO NAKAYAMA Foundation for Science & Technology and Culture)
京都・立命館大学ゲーム研究センター主催のReplaying Japan 2019で8月9日に発表しました。発表題目は、「日本の伝統的色彩語彙を増やすカードゲームの研究」(中山隼雄科学技術文化財団助成研究)
I just bought a used color chart: Color Dictionary, which indicates the price: 3,500 yen. The average starting salary in 1954 was around 10,000 yen. Thus 20 x 3,500 yen turns to be 70,000 yen. Still color charts are costly in nowadays.