Jack-o-lantern patent,1903. Artwork of a helmet designed by Jon Du Ket. The decorated cardboard helmet is illuminated from within by candle. The obvious fire hazard of using cardboard with naked flame was not addressed in the patent | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / US Patent And Trademark Office |
Taille de l’image : | 3533 px × 4998 px |
Model Release : | Non requis |
Restrictions : | - |