I found these at an estate sale and thought they were beautiful. I looked up designers with the last name of Stark and found a Karen Stark who designed for Harvey Berin. His store opened in the 20's and closed in 1970. I believe these to be her drawings. They are paper on cardboard sealed under very old plastic. There is slight damage to one of the plastic wrap but there are no rips or tears just discoloration to the paper due to age. This could all be wrong but could not find another designer with that last name. If you know more please school me.