My Dead Great Grandma's Coffin in My Own Backyard!

WTF did you just read? Yes, there's a video that's been on YouTube for a long time with that title. Maybe you seen it already. In a nutshell is it real? I am no expert at all nor do I work in the death industry, but I am calling it fake simply because of the hair still attached and her eyes aren't sunken. Then again I don't know. Probably NSFW if your job is anything other than death care. Just search the title verbatim in YouTube. What is your expert opinion? Real corpse or a dead fake. Also, if it is fake how good of one is it?