Aramis Antiques has dated this piece to the 1900s.
They have a good gauge of silver and together weigh approx 120gr. They are in excellent condition. Their original box (the tiny latch to lock it is lost) is lined with navy blue velvet and silk, the lid imprinted for the retailer Fairfax & Roberts, Sydney. So it appears this lovely set made the journey to Sydney and back to England at some point over the last 100 or so years.
Aramis Antiques has dated this piece to the 1900s.
You can view the stock and full dealer information on the Aramis Antiques Profile Page