Built limited numbers of motorcycles from 1913 and began production in 1920 using Blackburne engines housed in a typically primative frame equipped with a sprung front fork, and bicycle pedals.
These were built until 1926 or 27, when the the name was changed to Monark.
Sources: Correspondence, wikipedia.nl. (NIT)
April 7, 2001
Swedish, 1913-1926 sold as "Esse" then changed to the Monark name 1927-1975 --
flattracker1 at home dot com