Very interesting – the 481390 serial number would indicate that model was built during World War Two. At that time it was against the law to sell recreational outboards. Motors sold to the Army Air Force and Marines were Olive Drab. Those sold to the Bureau of Ships were white. After the war, motors left in the warehouse and unneeded by the Armed Services were repainted for civilian sales. Your Johnson would have been Johnson Green with red decals. This "as found" model is rather faded …
These are TD (Deluxe) models with the Auto-rewind starters. Your TS model was $15 cheeper.