Andrew Nethercott Antiques has dated this piece to the 1920s.
Strong graduated curb chain links, matching maker and 9 .375 hallmarks throughout,
hallmarked Birmingham 1921, makers mark B&S for B H Britton & Sons Hockley Hill, Birmingham

Typical 9 carat golden colour, neither rose nor yellow
In excellent condition, with no damage, repair or wear, good and sound, strong and ready to wear.
Total working length of chain 15,1/8" or 385mm, weight 46 grams
Andrew Nethercott Antiques has dated this piece to the 1920s.
Works of art, collectables, scientific and decorative antiques from the 17th - 20th century
You can view the stock and full dealer information on the Andrew Nethercott Antiques Profile Page