Lot of Navajo 2 Sterling Silver Earrings and 6 Button Covers Bear & Arrow

Here is a nice set of Native American jewelry, probably Navajo. These are believed to be sterling silver. The Earrings are on a card marked Sterling Silver, but none of the pieces are marked. Included are 2 earrings and 6 button covers. Each has a Grizzly Bear and Zig-Zag Arrow and measure 3/4" in diameter. They were a gift for a friend of mine and were never worn. Total weight is 28 grams. Sold as is. No returns unless the item is not as described and pictured.