The Flash Master is a bakelite viewfinder camera, sold by Seymour Sales Co. as "Acro-Flash "45" kit together with a big bulb flashgun. It has characteristic flash contact posts upon its lens barrel. It was a camera for type No. 127 film rolls and made 4.5×6cm exposures. It offered choice between instant speed and flash mode (B mode), and it had a simple Graf lens.

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