Possible. It would begin to smoulder, depending on the fabric it came in contact with, then might eventually ignite a flame which would more than likely snuff itself out when the oxygen in the casket was depleted.
tobacco is inside the cigarette.
Inside an Egyptian coffin is a mummy and occasionally a bag of dead butterflies
The stone container of a wooden coffin was called a sarcophagus.
The inside of his coffin.
nicotine
inside the chapel or under his castle
nicotine and tobacco
YES
It was called a sarcophagus (Latin- "flesh eater"), hence the wooden coffin fit inside the stone receptacle.
For her funeral she was in a lead coffin (covered in purple velvet and a life-like effigy). But she must have had a double coffin (a coffin inside a coffin) because in the 1800's when her tomb was opened it was reported she had a wooden coffin so her wooden coffin must have been inside the lead one, although I cannot confirm this, its only an assumption. its also possible that she had a lead coffin for the funeral and her body was then moved to a wood one later. point being, she had one lead one, and one wood one.
Princess Diana is said to have had one of the coffins typically used for British Royals: an oak coffin in the shape of a hexagon; inside a coffin liner made of lead.
There is no particular symbolism involved. It could mean no one is allowed to smoke inside or someone has been standing outside smoking.