2 boxes/sets of 21 candle lights vintage Christmas’s tree garlands lights

Vintage Christmas lights. 2 identical boxes. Each box has 7 clips with three candles in each little tray. One clip in one box is missing. See photo. All 42 candles work. If one of the bulbs is burned out the rest keep working. If one is loose or missing, the strand turns off. I’m including a small pile of extra bulbs. Sold originally at Woolworth’s/Woolco. Get ready for next year’s vintage Christmas decorating!!