1.25” button with Hyatt backpaper features logo of the “Paragon” airplane propellers along with company name “American Propeller & Mfg. Co./Baltimore, Md. U.S.A.” Reverse collet holds 3” ribbon with gold text “Flag Raising Oct. 19 A.P. & M. Co.” From the World War I era when this firm employed 900 workers producing wooden propellers for American and allied planes. Tiny age traces on the ribbon but still VF and the cello itself is essentially Mint as made. Only example we’ve seen.