Pictures taken at the twin burial ceremony for Fisher and her mother Debbie Reynolds at Forest Lawn Memorial Park in the Hollywood Hills show family members holding the distinctive green and white urn.
Fisher's brother Todd told The Hollywood Reporter that the porcelain urn was from the 1950s and was one of the Star Wars' star's "prized possessions".
Fisher was candid about her battles with mental health and drug use in interviews and her writing, saying in her 2008 book Wishful Drinking: "I feel I'm very sane about how crazy I am".
The burial followed a private memorial on Thursday at Fisher's home, featuring eulogies from her daughter Billie Lourd and - according to People magazine - Meryl Streep leading the 125 guests in a rendition of Fisher's favourite song Happy Days Are Here Again.
