I don't have reliable information about a specific work titled "Le Paysage au Bâteau" by Alphonse Legros in my training data. While Legros (1837-1911) was a prolific French etcher and painter known for his landscapes, religious scenes, and portraits, I cannot verify the details of this particular etching without risking inaccuracy. I'd recommend consulting museum collections or specialized catalogues of Legros's oeuvre for accurate information about this work.