Made by Wedgwood probably in the mid 1980s after the collaboration with Dartington Glass, some have a faint acid etched "Wedgwood" in very small letters on the base. Called a George Candleholder and designed by Frank Thrower, pattern number FJT7, this is the larger of the two sizes made.
All info from Dartington Glass, The First Twenty Years by Linda and Stuart Smithson.
John