Tantalizer 121: Three men on a bummel

From New Scientist #671, 16th October 1969 [link] George, Harris and I spent our holiday in sunny Sindonia this year. While there, we took a triangular tour from Linoleum to Margarine to Neutrino and back to Linoleum. Such jolly little places! Each leg of the trip could be made by coach, boat or train. Of [ ]