It was the sort of window which was common in Paris about the end of the seventeenth century. It was high, mullioned, with a broad transom across the centre, and above the middle of the transom a tiny coat of arms-three caltrops gules upon a field argent-let into the diamond-paned glass. Outside there projected a stout iron rod, from which hung a gilded miniature of a bale of wool which swung and squeaked with every puff of wind. Beyond that again were the houses of the other side, high, narrow, and prim, slashed with diagonal wood-work in front, and topped with a bristle of sharp gables and corner turrets. Between were the cobble-stones of the Rue St. Martin and the clatter of innumerable feet.