Popular magazines often contain advertising for accessories; see the list of magazines on the "Costume Visual Reference" tab. See also the "Visual Reference Series" on "Getting Started" tab for additional leads.
For additional patterns and images of period headwear see the magazines Delineator and Harper's Bazaar.
Visual dictionaries provide clear, detailed, labeled images of a wide variety of natural and man-made objects. Dorling Kindersley published many visual dictionaries listed in OBIS. Other visual dictionaries are shelved together in PE 1629 and AG 250 sections of the library. Below are a few examples: