The Elto outboard company was founded by Ole Evinrude after his non-compete agreement had expired with the original company that still used his last name.
The "Evinrude Light Twin Outboard" was introduced in 1921, and the company pioneered or perfected many features used in all modern outboards (e.g. all-aluminum castings, 4 cylinder outboards, easier starting and highly tuned racing engines)
Elto was merged back into OMC in 1929, and at that point the second company started by Ole Evinrude was officially re-joined with the first company that still bears the Evinrude name today.
The Elto lineup disappeared with the onset of WWII, and enjoyed a brief resurgence in 1949 as a discount offering made by Gale Products.
Check out some photos of these awesome Elto's!