Vintage 14K gold filled Victorian necklace with natural white pearl

Vintage / antique Victorian gold filled necklace. Stamped 1 / 14K GF on the pendant and also has a makers mark. The central part of the pendant has a brushed surface. 15" chain. 1.5 cm pendant. One wear spot on the side of the pearl (shown in the one before last picture). Otherwise in excellent condition. Gold filled vintage jewelry is considered valuable and collectible as it tends to be of better quality and also contains quite a bit of gold.