The 1923 Motorised Perambulator built by the Birmingham pram maker Dunkley. The 1hp engine was possibly Anzani, and there was talk of a 750cc version, which can't have been very safe. I doubt if many, or any, were sold, the intention being to create publicity, or possibly just to have fun. They certainly came up with some wacky contraptions, notably the wickerwork car that ran on town gas and could be refuelled from any convenient lamp post. I suspect a Heath Robinson influence.