How Long Will Alcohol Preserve A Body?

Years ago, I was given some discarded specimens from a local college museum. They were mostly specimens of various maribe animals and shellfish. They were in fine shape-some had been collected 76 yeras before. I used them to decorate some windwsill-they gave the room a scientific tone.
Anyway, how long do such museum pieces last? Would a human body immersed in alcohol be good for several hundred years?

Closing duplicate thread.