Morrisville, PA, US
These are two exceptionally rare ephemeral items from The Gyro Motor Company. The first is a Jan. 1, 1915 brochure that is possibly hand signed by both Santos Dumont and Emile Berliner, and the second is a 1912 sales catalog. The brochure has 4 sides and we have provided scans of both autographs for comparison, as well as 2 scans full of comprehensive information about this historic American aviation company. The 1912 sales catalog contains 24 richly illustrated pages and was printed on high quality glossy stock. It has an embossed cover with gilt lettering and is string tied.
excellent as shown