Vintage Turquoise items frequently come up for sale on ebay. Many of the good, old pieces were sold to tourists from the east in the 1920's & 30's. Navajo and other indian jewelry was all part of the Fred Harvey & Santa Fe railroad experience. As a result estate buyers in the east, who may know nothing about turquoise indian jewelry will list it for sale very cheaply. However, it can be very hard to tell old, crude pieces from new, shoddy work; especially if all you have to go on is a few pictures.