Luscher Color Test

The color squares that are perforated in the middle of the book,; Mass Market Paperback; Pocket; 1971; First Edition; Ian Scott did the editing and translating from the german. ; 16mo 6" - 7" tall; 187 p. Good+ meant to be popped out for testing, are all present, just no longer attached to the page, a rubber band is keeping them all togther. Minor edge wear to the covers, espeically around the spine, but no major damage to it. Still easily read, clean pages still bound tightly, the only marking found is on the first page and it is just the previous owners name written near the top edge of he page. Books.