Altena was a Dutch automobile manufacturer founded by A. van Altena in Haarlem at the turn of the 20th century. Initially, van Altena worked as a service engineer for the MORS and BENZ importer Aertnijs before venturing into motorcycle production. In April 1901, he advertised his services in building and repairing motorcars, which marked the beginning of his foray into the automotive industry. The company underwent a name change in 1902 to NV…