P&M 1915 770cc V-Twin Road Test
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Panther Motorcycles

P&M 1915 770cc V-Twin Road Test

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Un cuarto prototipo (patente HM-7) fue probado en ruta por "The Motorcycle".
A fourth prototype (Patent Hm-7) was road tested by "The Motorcycle", article dated May 6th 1916

Credit: The MotorCycle