[NATIONAL TREASURE]. Prop Hollow Brick. [Walt Disney Studios, 2004]. Screen-used prop hollow brick with stamped masonic symbol and hollowed-out area, as seen in the blockbuster film. Approximately 8 x 4 x 3?. Brick is cast in various materials including resin. This brick was used in a crucial portion of the movie and hid the special glasses invented by Benjamin Franklin to read the invisible ink on the verso of the Declaration of Independence. Modeled and painted to look old, as one would expect. With COA from Disney Auctions.