"Stirrups have been made in many plain and decorative forms. This table shows a selection of eyes, platform styles, side views, and overall silhouettes that could be recovered by archaeologists in the Mid-Atlantic.
Very little literature exists on changes in stirrups overtime. Noël Hume describes the earliest styles in the colonies as having straight sides, a gridiron (barred) platform, and a swiveling eye. He says, this style was replaced in the later 17th century with stirrups that had solid rectangular platforms, a fixed rectangular eye that flared at the top, and curved sides that gave the stirrup a circular shape. He suggests that, by the end of the 18th century stirrups had less curvature to the sides, and oval platforms rather than rectangular ones. Although forms matching these descriptions have been recovered in Maryland, there are not enough examples to do a serration study that would test Noel Hume’s chronology of colonial stirrups."