Not so brainy perhaps?!
Hi,
Your other respondents seem to be confusing a snuffer with a douser or extinguisher. Candle snuffers are a scissor like implement formerly used for trimming the wicks on candles while they were burning in order to reduce guttering and to give a better light. They were made in many different metals including brass, steel, silver, close plate and Sheffield plate and many were made by highly skilled craftsmen; perhaps your Great Grandfather was one of those? Today people tend to use the word snuffer to refer to the conical extinguishers but this is really not correct.
All the best,
Simon