This necklace is in excellent preowned vintage condition. It is all solid sterling silver which I have tested the blossoms the naja and the clasp. All tested bright red with the testing acid.
I was able to find the artist signature on a Navajo artist reference website which I have included the picture. I have two other pieces that I Acquired at the same time one is a liquid sterling Navajo Nicholas as well as some Benally signed earrings. This helped with the authenticity studying that I did. The item "Vintage Navajo Squash Blossom Necklace Sterling Silver Signed SPENCER Turquoise" is in sale since Saturday, March 9, 2019.This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Necklaces & Pendants". The seller is "ih966sf" and is located in Johnson, Nebraska. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Uruguay.