It all began when a chum of mine decided to write a book. It would have been what the trade calls a "slim volume", unlikely to win the Booker prize and even less likely to achieve sales of, say, dozens. The title of this magnum opus? "Sheffield Transport in 1960." Not a title to encourage the book buying public into instant salivation!
Anyway, the budding author wanted a map of Sheffield bus and tram routes in 1960 - so fbb decided to have a go. Herewith an extract: note the pecked line showing that, at least until October 1960, trams still trundled through some of the city's streets.