Because they didn't think it was safe or in other words appropriate for other people to see
Duke Ellington was one of the most celebrated jazz musicians of the 1920's. He was an American composer, pianist, and bandleader of a jazz orchestra. He led his orchestra from 1923 up until his death in 1974.
Intaglio printmaking can be dated back to the "Sumerian" people, around the year of 3000 BCE. The name itself however is relatively new, coming from the Latin "intagliare" which means "to cut"
It was made out of fabric such as the Santa Costanza
