All this to say I wasn't the only one excited by the recent release of The Polerouter the first book dedicated to the Universal Genève Polerouter. The
link book begins with the
link story of the Polerouter née Polarouter and its connection to the first Scandinavian Airlines SAS commercial trans-polar flights in 1954.
link The Polerouter documents the lineage of mechanical Polerouters from the first SAS Polarouter to the refined Polerouter Date to the rugged Polerouter Sub.