Emile Claus Steamboat at Quayside Postcard

Dusk has turned the river to silver. A steamboat crosses slowly, its single funnel trailing brown-grey smoke, the hull dissolving into countless short strokes of lilac, pearl, and pale rose. Bare autumn trees frame the foreground; three or four figures in dark coats stand at the embankment railing, watching the boat pass, while a small rowing boat waits at the water's edge. It's one of Emile Claus's quietest, most divisionist works — almost without colour, built entirely from light.

Well suited to a river or dusk-themed corner of a postcrossing collection, or simply mailed to someone who likes their evenings quiet.