For your consideration is this rare, Hall's Automatic Bike Whistle from 1898, manufactured by H & H Specialty Company in Newark, New Jersey. Not much information was found on the H & H Specialty Company but this whistle was manufactured by them in the late 1880s to late 1890s. The automatic name comes from the fact that the front tire of the bike would operate the whistle, with very little input from the rider other than pushing down a lever. As the cyclist pedaled, the bike wheel would turn the smaller drive wheel, which in turn spun a fan or rotor inside the whistle’s housing. This rotating fan forced air through a tuned chamber, producing a loud, continuous whistle without any need for batteries or manual operation. The system was entirely self-contained and responded instantly to movement: the faster the bike traveled, the faster the drive wheel spun, resulting in a louder and more urgent sound. When the bicycle stopped, the whistle would naturally fall silent. The only marking on this whistle reads, "Pat Apl'd For". It shows fair to good condition and could be serviced and repaired to be in good working order. The small wheel moves the air pump up and down, original connectors still intact but appears to be missing a top connector. Signs of wear present but no major signs of damage noted. It measures 2 1/4" L x 1 5/8" W x 9 1/2" H and weighs 8 ounces. Provenance: From the Tombstone Western Heritage Museum in Tombstone, Arizona. HW98