It is fully marked on the inside with the Royal Worcester puce mark which I think dates it to 1903.
Antique Royal Worcester Blush Ivory Porcelain Miniature Trinket Box 1903/05
ANTIQUE ROYAL WORCESTER BLUSH IVORY RAISED LEAF SMALL PORCELAIN VASE GOLD RIM
Royal Worcester Blush Ivory Vase & Cover By Edward Raby, Circa 1894
ROYAL WORCESTER BLUSH IVORY MINIATURE TANKARD - DATED 1901.
ANTIQUE ROYAL WORCESTER BLUSH IVORY RAISED LEAF SMALL PORCELAIN VASE GOLD RIM #2
ANTIQUE ROYAL WORCESTER BLUSH IVORY RAISED LEAF SMALL PORCELAIN VASE GOLD RIM #1
