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Heuston Station is the point of arrival or departure for rail routes west or south of Ireland's capital. I did a couple of quick sketches around the concourse and beside the platforms. Unfortunately ink was running low in my brushpen by the second sketch in the station and the only replacement I could find was calligraphic ink (I usually use watered-down liquid acrylic ). The result is a watery dense blackness with little or no subtlety. I'll have to clean out the brush and get back to the original mix.