Item: Vintage Mexican Sterling Silver FNM Taxco Modernist Kinetic Pendant & Chain. The chain is not stamped at all, but is testing as Sterling Silver. The pendant is marked FNM Taxco and I can see part of the 925 mark - it is also testing as Sterling Silver.
 
Measurements: Chain is 23 inches long. The pendant is 1 & 5/8th inches long. Total weight is 23 grams.
 
Condition: Vintage, previously owned. There is no damage to note. There may be only very minor signs of age/use/patina.