Hi - I'm hoping I can post photos of a piece of memorabilia you might be interested in. My grandfather, H C Pickering, formed a company in 1912 with three colleagues, Sidney Darby and John and Gilbert Allday. They took over the workshop premises of Pickering Brothers and Darby in Bristol Street, Birmingham to produce a cyclecar, the PDA. It appears that 15 cars were made during 1912 and 1913, but in October 1913 the company was wound up and dissolved in 1914. My grandfather competed with the PDA in trials and runs, and in 1911 he took part in a non-stop reliability trial in a different car (unfortunately we don't know what this was) which was organised by the Sutton Coldfield Automobile Club. Presumably he completed the trial as he was given a medal by the Club, engraved with his name and the date which I'll attempt to show below. If anyone is interested in the PDA or has further information about it, please contact me.