Pickering, Darby and Allday Ltd (PDA), was a British automobile manufacturer from 1912 to 1913.They built the PDA Cyclecar at their works in Birmingham, equipped with V2-engines from various manufacturers.Approximately 15 units were built.[1][2]
References
1.Nick Georgano. The Beaulieu Encyclopedia of the Automobile Fitzroy Dearborn, 2001^
2.Harald Linz, Halwart Schradee. Die Internationale Automobil-Enzyklopädie United Soft Media Verlag GmbH, 2008^