Double Strand Pearl Necklace I Have A Double Strand Richelieu Pearl Necklace?

I have a double strand richelieu pearl necklace? - double strand pearl necklace

I have a double-strand pearl choker Richelieu
C-1575th I was wondering if anyone knows how much it was worth it. I wish my mother and she said she did not know what year it was, but at least 50 years.

If anyone has any information would be greatly appreciated, then each site, we have shown that the simulated pearls. I want to know the actual price, not imitation.

Thanks