I first saw this piece in an in-store framed picture and assumed it was a catalog cover like the other framed pictures in my collection. When I finally got to see the whole piece it was revealed that all of the product was only available in the Mill Valley or Polk Street stores and not through mail order, so I consider it to be a sale flier rather than a catalog. In either case, as with all things pre-1984 it’s extremely rare and unique.
The flier features drawings of clothes in a line up of and has a symbol key with designations for “authentic” (surplus), all cotton, water-proof, etc. These should all be Patricia Gwilliam Ziegler drawings as she was still the only staff artist at the time as far as I know. The cover has a charming cartoon with her Gwilliam signature.