pair of stairs

In another, a ladder-like pair of stairs, suggesting a ship’s companionway, lay half out of the water.

From The Dragon's Secret by C. M. (Charles Mark) Relyea

Then in a flash he remembered the coat-room, remembered the narrow pair of stairs leading down from one corner with a row of red fire-buckets on a bench beside it.

From Under Boy Scout Colors by Joseph Bushnell Ames

In her very nose is Steerage No. 1, down two pair of stairs.

From The Works of Robert Louis Stevenson - Swanston Edition Vol. 2 (of 25) by Robert Louis Stevenson

A snuffy old woman made her appearance, peered at me through her spectacles, and then stumped up a pair of stairs which faced the door.

From Valerie by Frederick Marryat

She lies in the watchet-coloured chamber, on the right hand, one pair of stairs.

From Shorter Novels, Eighteenth Century The History of Rasselas, Prince of Abyssinia; The Castle of Otranto, a Gothic Story; Vathek, an Arabian Tale by William Beckford