*snicker* Considering the date in Australia, I'm taking this with a large grain of salt, roughly the size of Gibraltar, or Jebel al Tariq as it was originally named for the Moorish general who conquered the Iberian peninsula.
In return, I can offer a well-preserved copy of the RLM's Handbuch der Graphit und Zellulose Aerotechnik so revered by Luft'46 fans.