Pictures on opposite sides of the page are not usually the same size, regardless of what the scan indicates. There is no date, but they are obviously early 1920's. On almost all pages the large fabric sample covers three or four smaller samples of the same fabric in different colors. Some illustrations have small age discoloration or other small spots. To frame these you would unfold the entire brochure, which is quite large when displayed fully open.
All fabrics display on the same side when unfolded.
These would be great on a sewing room wall or for use as reference. Due to scanner size limitations, only four sections for each brochure are shown. These are large, hand-colored engraved plates with exquisite detailing. These folios reflected the very latest in Paris fashion. There are also tiny line drawings of a different view of the style in the backgrounds of many plates.