Jack Craib's Rowboat Motor Information Site

Setha
Motor och Båtverkstäderna i Uppsala
Engine and Boat Works in Uppsala, Sweden

Seth August Högman was an engineer involved with outboards for many years.

The company was founded in 1906 by Janne Nyman, son of Anders Nyman, who previously started Nyman Workshops.

The engine is basically a copy of the Evinrude but used a self-ignition flywheel magneto. During the 1910s, MBV and Archimedes were the most significant manufacturers of outboard motors in Sweden.

Outboard motor production was started in 1913. Motors were produced and distributed a few years under many names, such as M.B.V., Meteor, Pilot, Prior, Setha, Perfect and Express.

All of them were very much “Swedish Evinrudes”.

Info from Stephan and Arne Lagerholm's site

This is too much fun not to include!

The explanatory text at the Nordiska museet reads in translation:

"Interior of Stockholm's stadium. Reserve Lieutenant Seth August Högman in an open Hupmobil model 32 Touring, with reindeer skins over the hood, snow chains on the right front wheel and extra searchlights. Around the crew is a mostly male audience. To the right in the picture an official with a start flag and straw slippers warming his feet.