I have read 2 seperate theories.
1. States that dentistry around that time period was crude and infection easily set in. The infection would be close to the brain and very capable of causing death.
2. Part of the burial process used during the period to keep the mouth from dropping open during the viewing unexpectedly.
Jacob Marley is described as a ghostly figure in Charles Dickens' "A Christmas Carol," wearing heavy chains and a handkerchief tied around his head. His appearance is meant to evoke a sense of haunting and foreboding, symbolizing his torment and regret in the afterlife.
A Bandana
That is called a bandana.
In "A Christmas Carol," Marley's face is described as being ghostly and pale, with a handkerchief tied around his head and his lower jaw hanging open on one side. It appears twisted and distorted due to the suffering he endured in the afterlife.
The brass door kncker changed from a lions head to that of an image of Jacob Marley
A bandana is a large form of kerchief, bright and colourful and used as a handkerchief, neckerchief, or sweatband around the head.
Jacob Head's birth name is Jacob Cabot Head.
If you mean a ghost from "A Christmas Carol," that would be the Ghost of Christmases Yet to Come.
In Charles Dickens' "A Christmas Carol," Jacob Marley's ghost has a cloth tied around his mouth to symbolize the silence imposed on him as punishment for his past deeds. It also serves to depict his inability to communicate verbally with Ebenezer Scrooge in the afterlife.
Jacob Head is 6' 2".
Scrooge's friend when he was young in "A Christmas Carol" was Jacob Marley. Marley was Scrooge's business partner and played a significant role in the story as the ghost who visits Scrooge to warn him about the consequences of his selfish ways. Marley's ghost appears to Scrooge wearing chains and lamenting his own greed and lack of compassion in life.
Jacob Head was born on October 17, 1974, in Worcester, Massachusetts, USA.