For those feeling the after-effects of War, the ability to get around with some form of normalcy was essential. Demand for relatively simple, small carriages was increasing, and several companies created what were known as 'Invalid Carriages'. One such company was Frank Tippen & Sons of Coventry in the United Kingdom, who introduced the motorised, three-wheeled Delta range in 1955. One of the first such vehicles that could be fully enclosed, the Delta was refined with several 'Mark' upgrades in its 13-year production run. They used fibreglass bodies with a sliding door to enable easy entry and exit, and utilised hand controls for throttle and steering. Towards the end of the Sixties, a Delta could be had with electric power.
A change in the UK's road laws saw vehicles such as the Delta be deemed illegal for road use- consequently few survive today.
2011 Shannons Melbourne Spring Classic Auction