Four wings, four colours. These versions depict a dinosaur.

• Inventor: Fritz Gruber
• Mechanism: Roundy
• Patents: US5267731
• Producer: INTERCONCEPT GmbH.
• Year: Unknown
• Original Price: $0.00 USD
• Current Price: No Data

There are three known version with different dinosaurs:
Deinonychus (version 1), Stegosaurus (version 2), Tyrannosaurus Rex (version 3).

For image 3 applies:
Courtesy, The Lilly Library, Indiana University, Bloomington, Indiana.
Jerry Slocum acquired sample in image 3 in 2000.

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