Tomy's Original Ferry Boat Set?

Based on my own rusty memory and with some help from Wikipedia, I would say the US release of this toy was almost definitely in the 1970s. The lack of a Tomy logo on the box is probably because Woolworth repackaged it in their own store brand box. It definitely dates to after the release of the first motorized Plarail train in 1961, since Woolco opened in 1962.