Vintage multi-tiered Silver tone Locket Necklace Box Clasp 1960's

This is a vintage 4 strand silver tone chain necklace with a locket.  It is secured by a box clasp indicative of 1920-s to 1960's.  I am not an expert just doing research.  These 4 strands are different designs.  The only wear is on the back of the locket if you look at above pictures on the backside.  The front and all chains and clasp are great.  The locket clasp may need adjustment once it's closed it is harder to open but you can open it.  18-locket chain 26,28 and 32 chains the drop on chain is 16 long s x2 + 32 approximate length of longest chain.