I have a heavy American Indian, sterling bracelet with a green turquoise stone on top. The piece is exceptional & has good beading and stamping. The Hallmark is a large owl stamp on the underside with an N in the top center. The hallmark stamping is as beautiful as the design on the top of the bracelet. The wingspan of the owl is about 2 inches wide. It has big eyes. I need help in identifing the artist. I have looked on line and in the book "Hallmarks of the Southwest", but no luck.

There are some sites with Native American hallmarks
I don't remember them all

Indian Native American hallmarks M Z (http://www.art-amerindien.com/signature_indian_native_marks_mz.htm)

Southwestern jewelry handcrafted by Native American Indians. (http://www.southwestaffinity.com/navajo_silversmiths.htm#Can%20Southwest%20Affinity %20identify%20a%20hallmark%20for%20me?)

native american hallmarks - Yahoo! Image Search Results (http://images.search.yahoo.com/search/images?_adv_prop=image&fr=mcafee&va=native+american+hallmarks)