We have a lot of 3 vintage/retro necklaces.  Looking at the first photo left to right they are as follow:
The first necklace is from around the 1970's. It is adjustable with a hook and links on the other end - The length can be anywhere from about 22 1/2" to 25 1/2". It is beaded on jewelry string - it seems to be fairly strong BUT it is vintage. The beads are a clear cut edged plastic in multi earth tones. They have a nice shine to them.
 
The center gold/white necklace dates from between the 1940's - 1970's.  The chain measures about 18" in length with the gold tone and white pendant extending down from there measuring about 3 1/2" at it's longest x 2 1/4" at the widest point.  It is in nice condition. 
 
The last one to the right is a retro metal rose necklace from around the 1980's or so. The chain measures about 14 1/2" in length with the rose extending from there measuring about 7/8" x 3/4" x about 3/8" in depth. It is in nice condition.
 
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