Please help me identify this old locomotive

Found this box included with some other stuff I bought at an auction. Trying to identify it, but coming up empty.

They are HO scale or similar. Unique couplers and the loco has a manual lever in the cab that must do something. Reverse? Speed?

The cars are a molded tin. Anyone recognize this old set?

loco and tender

passenger cars

https://new.liveauctioneers.com/item/2938276_sakai-ho-2-rail-electric-us-outline-train-set

[:)]

Thank you for that quick answer.