Esherick (1887-1970), a studio craft pioneer, is represented by “Music Stand” (1962), an elegantly simple frame of cherry wood crossbars supported on three curving legs. Mr. Maloof’s “Settee #3/87” (1987), in richly grained tiger maple and ebony, has a classic plain shape, with slight tweaking of the double chair as stripped down by Shaker furnituremakers.