Costume Jewelry Collectors
Presentsan original publication by RCJ and Dorothea Stringfield
Jewelry Patents 1911 - 1929
Dotty's friend Mary Walden-Till of the UK is responsible for these pages of utility patents. Her dedication in searching the US patent website and willingness to share her findings is greatly appreciated.
Spaney & Maye 1006506, 1911
Jacobsen 1,068244 Hair Pin 1913
Stone 1,469,450 Hair comb 1923
Voskerchian 1,660,181 Cameo brooch 1928
Dufau 1,717,374 Brooch with removable letters 1929
Kaufer 1,716,640 Brooch Bar Pin 1929
Johnson 1,722,423 Watch Fob Brooch 1929
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Original RCJ publications pages created and or authored by Dorothea Stringfield