That looks like a cool find. Can you take a good clear photo straight on directly from above getting it all in? As with anything like this provenance is everything. It might look legit but it doesn't mean its a preproduction/studio/Lucasfilm item. Are there any other notes, marks or writing anywhere on it that can't be seen in this photo? Ideally you need to find out who drew it, when and for what purpose. A tall order after 40 years :wink: