I fell in love with Viscount bikes when I was at college in the late 1970s. A friend had a red Viscount Aerospace Sport with fillet brazed frame. It seemed beyond cool. At the time I had an ancient and nameless British lightweight with a pull chain rear derailleur and a suicide lever front derailleur. When I could afford it, in 1981, I went to buy a bike like my friend's but found that Viscount had discontinued the fillet brazed frames, so I bought a blue Viscount Aerospace 400. This had a nicely lugged 'Aerospace' frame. It cost about two hundred pounds, which was quite a lot then but I guess less than a traditional high quality lightweight. I still have this bike although the frame has cracked across the bottom bracket and I have used the components on other bikes. This picture shows the 400 in its original glory.
