Screw Back Earrings

According to Warman’s Antique Jewelry, screw back earrings date from 1909 and although still used, they are not common on new pieces.

 

Screw Back Earrings

Vintage Sterling Silver and Turquoise Screw Back Earrings

Paula

When was the STERLING stamp first used on Native American jewelry?

An exact date is not available for when the stamp STERLING was first used on Native American jewelry.

According to some sources, the STERLING stamp appeared after 1932.

Most Native American made items from the 1930s and before would not have a STERLING stamp nor any artist hallmark for that matter. But there are no hard and fast rules when it comes to hallmarks – there are always exceptions.

Some items made in the 1940s to 1950s might have the STERLING stamp, most notably, those made by Bell Traders during that time period.

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But in general, Native American artists began using the STERLING stamp in the 1950s and 1960s. Since then, the STERLING or Sterling or 925 stamps are quite common as are artists’ hallmarks.

STERLING stamp

Sterling stamp

Sterling stamp

.925 or 925 indicate that the item is 92.5% silver which is the requirement for something to be called sterling silver.

.925 stamp

.925 stamp

In the vast majority of cases, if a piece of Native American jewelry is stamped with one of the above marks, the item is made from Sterling Silver.

If an item is not stamped with one of the above, this does not necessarily mean the item is not made from sterling silver. Most vintage sterling silver Native American items do not have the STERLING mark.

The only definitive way to know is to perform an acid test.

Paula

Vintage Pure Silver Kewa Concha Belt

Most Native American jewelry is made from sterling silver which you can read about here.

Jewelry Silver – Not All Silver is Created Equal

This particular concha belt made in the 1950s by Kewa silversmith Herb Coriz is made from pure silver ingots.

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Thus it is stamped .999 rather than the .925 for Sterling Silver.

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.999 stamp designates pure silver

However, he made the buckle, which receives the most stress, from sterling silver.

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The buckle is stamped Sterling

 

CB57-CCC-stamped-pure-coriz-1Paula