Well it's not very often you get a story and photos from an event before it is over!
One hundred years ago Sir George White founded the British and Colonial Aeroplane Company. In due course it became the Bristol Aeroplane Company and eventually the British Aircraft Corporation.
I can't do justice to the history here. The Bristol company produced aircraft, engines, lorries, buses and cars. Its Beaufighter was critical to World War II, the Bristol Britannia a cornerstone of civil avation history. Critically the Bristol company did much of the groundwork for supersonic passenger transport - its Type 223 a fundemental part of the development which led to Concorde which, of course, was built at BAC's Filton facility and where today's centenary event took place.
As is well known Bristol produced buses - mostly for the nationalised THC ('Tilling') companies - until 1983 when all production moved to Workington under British Leyland.
It wasn't quite possible to have Concorde in the background (the last ever flying Conconrde G-BOAF is on display nearby) but nevertheless there were many examples of Bristol engineering history nearby.