first edition printed in 750 copies. autograph dedication of the author autograph signed and dated Nelly Kaplan Charles Spaak: "... friend of Abel Gance, in tribute attentive" Foreword by Philippe Soupault. Nelly Kaplan was for several years the assistant Able Gance who entrusted him with the task of drafting this explanatory pamphlet of his invention: The polyvision.