The candle holders are marked on bottom with "International Sterling Weighted Reinforced 116 15 /3".
The inserts/shade holders are marked with "Gorham EP GI". These are not the original glass shade holders but are a close match. These inserts are silver plated.
Overall, this pair is in great vintage condition with minor signs of normal wear (some patina), just beautiful. There are some dings and dents as shown in the photos, no chips or cracks.
Banana For Scale. Not included!