It always gives me great pleasure to nail down a maker of a piece of furniture that we often see being sold as “attributed to” and be able to turn that into a definite “made by”. No further need to attribute this chair to anyone other than George Henkels (which is usually what the “attributed to” is).**
An original ad done by George Henkels documented in Victorian Details shows this very chair design prominently on page 43. The drawing is somewhat stylized, 19th Century style, but the unmistakable side bolsters are identically presented.
** NOTE: Based on new information received after this post was made, I’d like to temper the above statements with caution. There is documentation that suggests this chair is made by Robert Renwick of Baltimore. Stand by while I look into it.