My swap meet treasure from California

This beautiful thick green glassware has three separate sections.
It measures 10 1/2 inches long by 6 1/2 inches tall and 4 1/2 inches wide.
I have had it for 25 plus years. I bought it from a woman at El Cajon swap meet in California approximately in 1988-89.
I really don't know it's description or what to call it.
When I bought it the woman almost didn't want to sell it, but I paid $20 and she asked I would promise to take good care of it and I have.