"1913. The first outboard with magnetic ignition, the Swedish "Alka"."(Above according to: http://www.marinmotormuseum.se/utomborde.htm)

Alka were produced for about 10 years, from 1912, with the earlier model having battery ignition.
(Above according to: http://www.lagerholm.com/SOM/alka.html)

The Alka to the right is a careful restoration.

Go here for photos and more information.

These photos
are from a
European auction site, Lauritz.com.

This motor is held by the Malmö Museum. Believed to be a later Alka.

"The Alka engine was a two-stroke engine, ... It was 2.5 hp and was a direct copy of the Evinrude engine that came in 1910. The Alka engine was manufactured between 1912 and 1920." According to information from Christer Sigrand 2021-11-13

translation