[Theatre programme for performances at the Egyptian Hall, Piccadilly, London by Maskelyne & Cooke, the Royal illusionists… https://www.rawpixel.com/image/13992708/image-paper-book-doctorsFree Image from public domain license[Theatre programme for performances at the Egyptian Hall, Piccadilly, London by Maskelyne & Cooke, the Royal illusionists… https://www.rawpixel.com/image/13985761/image-paper-person-bookFree Image from public domain license