I bought this book at Goodwill. Whoever donated it must have actually gone to this 1986 exhibition of the 900th anniversary of Domesday book. Inside the book was a brochure, a worksheet with questions to be answered by the attendees, and a replica penny coin presumably hammered out directly by the attendee himself as is done at the Jorvik attraction in York. (The replica is similar to type 1250 in the Spink catalog. A real coin would be worth about 1000 pounds, maybe more today.) Must have been a fun event.