Who called 999? 10th May, 2017 If you’ve ever dreamed of owning your own fire engine, and not just a corgi model, now may be your chance to own this 1987 Dennis fire engine, registration D374 DBK. Dennis is one the UK’s most well-known makers of fire engines for over a 100 years. One of their most notable improvements on the traditional piston pump was the introduction of a centrifugal pump which improved the effectiveness of the apparatus. It's Lot 2002 in our Fire Engines, Parts & Uniforms - Private Collectors Sale which is being held near Lincoln on Thursday 18th May 2017 from 10am.