In Toy Stories, James Maybuilt a life-size house out of Lego. It was awesome. On the DVD of the TV series, he skulks around the basement storage of Lego HQ where there is a box set of every box set Lego has ever made. He pops open 1973 and shows this London Bus set, which he details as "the most perfect Lego set". Someone gave me this set in 1973.
I remember this set well as it accidently ended up at the pawn/second hand shop in Lobethal, South Australia. Being of a tender age, I had carefully packed my Lego with other items I thought were going on a trip. Nope: they were old items what we no longer needed. My treasured Lego bus was gone! Thankfully, some brave adult retrieved the bus. I remember the incident, and this kit well.