A striking study of a single-arched stone bridge in the Welsh countryside of Breconshire, rendered through both negative and positive photographic processes to explore the contrasting tonal qualities of the composition. Maskelyne's dual presentation invites the viewer to examine the interplay of light and shadow across the ancient stonework and its reflection, highlighting the bridge's elegant curve over the water. The work is initialed and dated in pencil directly on the negative, underscoring the artist's deliberate engagement with the photographic medium as both a scientific and aesthetic pursuit.